Pixar Makes Mistakes Too….

Toy Story (1995)

• When Andy leaves with Molly, he leaves her crib railing down, however, in the shot of Woody announcing “the coast is clear,” the crib railing is mysteriously pushed back up.
• After Mr. Potato Head leaves, he is all messed up in a Picasso-like way. But when the scene goes to the toys running around, Mr. Potato Head is now reset the right way.
• When Woody tells the toys the kids are gone and the toys roam around the room, Robot and Snake are shown on the right side of the room, but a minute later, they are shown on the left side of the room under Andy’s bed.
• Sarge and his troops communicate with Woody through the wrong monitor; In reality, the one Woody used is the one for talking, and the one the troops use is for listening.
• When Sarge calls his troops to go check out Andy’s presents, the bucket they are held in is next to a table and a dresser, but earlier when the toys are roaming around the room, the bucket is nowhere to be found.
• Woody uses a Magic 8-Ball to ask if Andy would pick him. Yet, in the shot before he does, the Magic 8-Ball was nowhere to be found.
• When Sarge is yelling into the baby monitor that the kids are heading up to Andy’s room, the baby monitor is right in front of Woody on the floor. Yet, when the camera pans out to show all the toys scrambling for their places, the monitor is gone, and Hamm is right in front of Woody. Then, when the camera zooms back in to show Woody, the baby monitor has reappeared.
• When Buzz demonstrates his “flying” abilities in front of the other toys, his left wing would have clipped the 
  
  Comparison shot between when the handle is black and red

  car track.

• When Woody first opens the back door on the moving van, the ramp handle is black. But when Rocky Gibraltar uses it, it is red.
• When Buzz is in Hannah‘s room, Woody comes up to it disguised in Christmas lights. He leaves them beside the door before he goes in. When they leave the room, the lights are gone. Later, the lights return when Woody saw the window exit in Sid‘s room, but some of them were gone.
• When Legs lowers the Pez dispenser, Ducky down through the removed lightbulb hole, to ring the doorbell, the lightbulb housing is bigger than the hole, but they bring it up through the hole to remove it.
• When Rex and Mr. Potato Head pop out of the moving box, lots of packing foam pops out. Later, when Woody opens the box in the moving truck, there isn’t any packing foam.
• See ‘n Say frequently disappears from moving van shots.
• When Buzz and Woody are trying to enter the moving truck towards the end, they ride RC and grab a hold ofSlinky to help pull them up. RC loses power and Slinky starts to be pulled onto the road. When he touches the floor to stop him falling, he actually pushes against the flow of the road.
• When the Little Tikes are jumping in the firetruck, one is white, but when he lands in the truck, he’s black.
• When Hannah accidentally stepped on Buzz’s wing, she stepped on the light. There was a good chance that the light broke, but it didn’t.
• When Woody and Buzz are riding RC after Rocky pulls the lever, Buzz’ rocket should’ve light up as the sparkles of the ramp would light it.
• Rex, despite being a toy Tyrannosaurus rex, actually has three fingers on each hand instead of two in real life. However, this may have been intentional since Rex is a toy dinosaur, which unless it was sold at a science museum gift shop or made for educational purposes, is actually not meant to be accurate.
• It is unknown how Mr. Potato Head’s eyebrows can be separated from his eyes. Mr. Potato Head has removed at least one eye in every movie, and he is seen to have been able to take his eyebrows apart. But when it shows him with one or no eyes, there is no hole for the eyebrows, but they can separate.
• Sid strapped Buzz to the rocket using duct tape. The duct tape was sticked around Buzz’s torso. But when Woody and Buzz use the rocket, and Buzz makes his wings pop out to prevent him and Woody from being blown up, the duct tape is nowhere to be found on Buzz’s torso.

A Bug’s Life (1998)

• As Flik is just leaving the island to go find the “tough bugs”, he’s followed by two young male ants. The two young ants look quite different, one being blue and the other more purple. The blue one says, “My dad gives you one hour before you come back crying.” and the purple one says something to the effect of “My dad says you’re gonna die.” But after Flik has hit himself on the rock whilst trying to cross the valley, the purple ant says to the blue ant, “Your dad’s right. He’s gonna die.” Wrong ant.
• The drunk mosquito clearly is a male, while in reality, only female mosquitoes drink blood.
• The ant colony is made up of both male and female worker ants. In real life, all worker ants are female but cannot reproduce, and males, known as drones, only serve to mate with the queen and die afterwards. The same is true with bees and wasps.
• In the opening sequence where the ants are loading the food onto the leaf, they show a panoramic shot of the scene, and you can see the Queen and Princess Atta standing under the shade near the center. But, in the very next shot, the ants are still hauling the food, and the royal family aren’t there.
• When the ants are deciding whether on not to let Flik go to the city, Atta says, “He can’t mess anything up!” However, her mouth says “Screw” when she says “Mess.”
• When Gypsy spreads her wings throughout the movie, the number of yellow spots on her wings change.

• The size of the shadow of an object depends upon its distance from the light source, not the surface it falls upon. Lifting the cutout of the bird a few inches closer to the sun as they do would make absolutely no difference to the size of its shadow, yet it quadruples in size.
• When Tuck and Roll got Hopper‘s antenna, the other antenna is the only one on Hopper’s head, but when zoomed out the antenna that was pulled off is still there.
• Approximately half of the insects in the film appear to have four limbs, while the other half have the correct number of six.
• When P.T. Flea was doing his trick with the other performers, he was stuck on the paper with glue. When he is putting his head on front, his other hair was found on the huge paper. But when the paper falls to the matches to make him filled with ash, his hair is gone.
• The bird featured in the film is clearly a passerine bird, but her chicks seen at the end of the film that hatch just in time to eat Hopper alive are all depicted with down-covered bodies and opened eyes. Actual passerine birds are born naked and blind.
• Gypsy resembles a regular moth, but in real life, unlike all other moth species only male gypsy moths have wings while females are wingless.

Toy Story 2 (1999)

• RC’s eyes are blue. However, in this movie, they’re black.
• Utility Belt Buzz is seen missing his utility belt for a brief moment (mistakenly making him regular Buzz) right before the toys find Woody in the air vents.
• When the gang reached Al’s Toy Barn, Slinky mentioned that it’s closed and Mr. Potato Head said: “We’re not pre-school toys, Slinky! We can read.” But in the first Toy Story, Mr. Potato Head mentioned that he came from Playskool.
• When Woody is trying to pull his arm from Al’s shirt pocket while he is sleeping, Woody only reaches to pull his arm out a little. In the next photogram, the arm is completely inside the pocket as it was before.
• When Mrs. Potato Head put Mr. Potato Head’s angry eyes in his back compartment the eyes are connected. You can tell if you look in the back while Mrs. Potato Head is holding them, the stems are slanted than straight. This was definitely an animation mistake because Mr. Potato Head’s angry eyes are later seen in the movie and aren’t connected. But it could be that Mrs. Potato Head also puts in some more angry eyes that aren’t connected.
• Towards the end, when the toys are in the dog crate at the airport, Mr. Potato Head’s angry eyes no longer look angry after they spill out of his hatch, along with his spare feet. The correction above could show that those ones that aren’t connected are normal ones and Mrs. Potato Head might’ve put in some more angry eyes that are angry and aren’t connected.
• When Buster sniffs Roly Poly Clown and the Toddle Tots fire truck, RC can be seen at the Lincoln log house but when Buster runs over there, RC is not seen.
• In Toy Story 2, Mr. Shark‘s color is changed from blue to gray.
• In the first film, Mr. Spell‘s voice is lower. But in this film, his voice is higher.
• When Andy sees Jessie and Bullseye for the first time, he acknowledges them as new toys and starts to play with them. However, he never acknowledges the Aliens as new toys, nor even plays with them.

Monsters, Inc. (2001)

• In the international version of the video/DVD, several instances of written English text have been replaced with universal symbols. However, on several occasions, they switch back to the original appearance. For instance: The “Standby/Scare” sign in the factory, the “Contamination alert” on the video wall during the first 2319 and the joke on the video wall in the final scene.
• When Boo laughs repeatedly while playing hide-and-seek with Sulley in the men’s room, nothing happens to the electricity — no surges as with all other times she laughs (in the audio commentary by the directors, they explained that it would’ve been distracting if an energy surge occurred every time Boo laughed, so they simply didn’t address the issue. A reasonable course of action, but still a mistake).
• After the Scarefloor shuts down at 6:00 and Sulley goes back to the Scarefloor to do Mike‘s paperwork, the clock reads 5:48. After he returns again to put Boo back, it clearly shows 5:48. Finally, after Randall leaves and Sulley leaves the Scarefloor for the restaurant, the clock reads 6:48.
• In the opening scene, on the floor, there is a toy train on circular tracks when the monster sneaks in. When the monster (Bile) trips backwards over the ball and skateboard then falls onto the jacks, the train and tracks are gone.
• When Mike is bringing Sulley to the fixed door, he has no slivers or band-aids on his hands. Then, when he says, “It was a lot of wood to go through.”, you see that he does.
• During the opening scene, where Bile is looking under the bed, you can see the soccer ball just beside the bed and in front of the dresser. As Bile moves backward, he suddenly trips over that same soccer ball that suddenly moved from the side of the bed, to the back.
• At the beginning, when the mailman drops the newspaper on Mike and Sulley’s door, Mike opens the door and the newspaper vanishes from sight before it would have gone behind the door.
• During the door chase sequence, there are a couple frames where neither Mike and Sulley or Randall has Boo.

Finding Nemo (2003)

• When Nemo first finds himself in the fish tank, Peach tries to report the dentist’s actions, but her voice is muffled by the glass pane. She has to pull away to talk. However, when the other fish watch the dentist, Peach is talking perfectly normally and not muffled, even though she’s pressed up against the glass again.
• When the dentist wants to put Nemo in a bag, he has a Ziploc (a plastic bag with a zipper), but when he finally catches him, it has changed to a normal plastic bag.
• Before Nemo is initiated into the Tank Gang, Bloat introduces the Ring of Fire. Bloat then retreats and goes between the on-looking fish. In the next shot, Bloat is on the outside/right. In the following shot, Bloat is again in the middle. However, it could be that he moved to these positions when off-screen.
• As the fishing net is being pulled up, a fisherman is shown to the left of two wires on the boat leaning on his elbow. Then, in the very next shot, the fisherman is in between the two wires, and now, he is leaning on his hand.
• When Marlin and Dory are inside the Whale, there are sun rays coming down into the water inside its mouth. Being inside a whale where the sun cannot get in, this is not possible.
• The whale’s baleen are yellow, and it’s a Blue Whale. The whale’s baleen should be black.
• Marlin is portrayed as a male clownfish. In real life, all clownfish are born male but led by a female, but turn female if said female dies, which would exactly happen to Marlin after Coral is killed by the Barracuda if this happened in real life. Also, Coral is depicted as being much smaller than Marlin. In real life, it is the other way around. As with the balloon error in Up below, this was a conscious choice by Pixar to go with believable rather than realistic.
• Unlike real jellyfish, the jellyfish in Finding Nemo sting by electrifying other fish, while real ones poison other fish with a really poisonous toxin with no antidote.
• Peach was bought from eBay. Buying live animals on eBay is prohibited. Of course, it is possible that this particular sale was overlooked by the eBay redactors, as sometimes happens.
• Peach appears to have eyes and a mouth. In real life, starfish do not have faces like vertebrate animals.
• The whale appears to have an uvula and a giant throat. In real life, only humans have uvulas, and a whale’s throat is ridiculously tiny for its size, being much smaller than a beach ball.
• Pearl and her father Ted appear to have mouths drawn just below their eyes, much like a typical cartoon octopus. In real life, a flapjack octopus’ mouth, like those of other octopi, is located under their bodies, where their tentacles are based. Based on this, this might suggest that what is supposed to be an actual octopus’ mouth becomes Pearl’s and Ted’s anus.
• Despite the Australian setting, Nigel, Gerald, and the other pelicans are based on brown pelicans, which are native to North American coasts, not Australian coasts. A more appropriate species for the setting would be the native Australian pelican, which is mostly white with black and gray wings.
• The sea turtles are all traveling via the EAC in a huge group. In real life, sea turtles do not travel together.
• Although this movie portrays the idea that fish that are flushed down the drain are returned to the ocean unharmed, in reality, this is not the case. In reality, though any water that goes down a drain does reach the ocean eventually, it will first go through equipment that breaks down solids, meaning that Nemo would have been killed long before being released into the sea. Pixar extensively researched Sydney’s sewage treatment facilities, and planned a scene which would have shown Nemo plausibly getting past the grinding equipment unscathed, but this was cut for time.
• The “species” mentioned in Mr. Ray‘s “Let’s Name the Species” song are actually classes, not species.
• When the Tank Gang are floating in the ocean in their plastic bags, the water levels in the bags are a few inches above that of the ocean. The two water levels should be the same.
• When the Whale drops Marlin and Dory off at Sydney Harbour, if you look very closely at the Moon, it’s facing the right-side up (Tycho Crater, the large crater on its southern hemisphere, is facing down). However, since the Moon is always right-side up in real life, this would mean that when viewed from Earth’s southern hemisphere it would appear upside-down (Tycho Crater is facing up).
• For some reason, Mr. Ray and the three sharks, despite all being male, are all lack claspers.
• Chuckles was mentioned to be a tank gang member. However, Chuckles is a goldfish and therefore couldn’t possibly survive in a saltwater tank.

The Incredibles (2004)

• After the 15-years-ago prologue, while Bob argues with Mr. Huph about the Walker policy, Bob’s little bucket of pencils falls on its side and he puts it back up placed on the left side of his right hand (near the middle of the desk). When Mr. Huph leaves, it is inexplicably placed on the right side of Bob’s right hand (at the desk’s edge), and thus causing it to fall off the edge when Bob sits.
• After being in a long traffic, when Bob was about to park on the drive-way. You can see there was nothing there and when he parked it and got out of the car he slipped on a skateboard coming out of nowhere.
• When Lucius is putting aftershave on in front of the mirror in his apartment, he hears Omnidroid v.10 outside and runs to the window, leaving the bottle of aftershave on the desk with the lid off. He returns to open the drawer and the lid is back on.
• While the family eats dinner at the table, the food keeps changing position. The commentators of the DVD discuss this during the featured scene.
• After the dinner table scene, Bob leaves to go out with Frozone. Then, Helen turns to talk to Dash. In the first shot, on Dash’s plate, all the broccoli pieces sit around the steak. Then, the shot changes, and a broccoli piece is suddenly sitting atop the piece of steak.
• When Helen and Violet are talking at the dinner table, Violet’s fork changes position a few times between shots.
• After Bob gets back home from “re-living the glory days”, you can see a barbecue in the backyard and it is on the concrete deck. But at the end of the scene, when the camera shows an aerial view of the house, the barbecue is on the grass.
• Violet’s part changes sides a few times throughout the film. It is usually on the left side of her head, but it is on the right at the end of the dinner table scene (after Bob has left with Lucius) and when Helen first discovers her and Dash on the plane. This was likely done on purpose because the camera in both of those scenes is focused on the right side of her face, so her face would not have been visible if her part was on the proper side. Also, hair was so difficult to animate, that to save time and expense, they switched the part in Violet’s hair to show her face when needed.
• Violet’s invisibility powers seem to be limited on her own body. (That was shown in the first scene with her, at her school, and where she secretly listened to the controversial of her parents, where only her head and hands were invisible but not her clothes.) While her Edna Mode-made supersuit is able to become invisible along with her body, her hairband is not part of the suit, and should therefore still be visible, but isn’t.
• When Mr. Incredible crashes into the building trying to save a man, his shadow disappears.
• When Helen Parr is talking on the phone to Edna Mode, although Helen’s shadow appears on the wall behind her, the phone and phone cord have no shadows.
• When Syndrome reminds Mr. Incredible about his line “I work alone,” he is not holding Bomb Voyage in the flashback scene as he did in the original scene (this could, however, be explained as Syndrome’s distorted perspective of the event).
• When Frozone is taking a drink when the police are at gunpoint, he leaves the water jug on and no water comes out.
• Although the Omnidroid 08 had the “8″ on its shell, Mirage referred to it as “9000″.
• The Omnidroid v.X3′s computer graphic in the Operation Kronos database is a repeat of the v.X1′s.

Cars (2006)

• At the scene after the first race, when Lightning McQueen poses for the paparazzi, we can see Dash Boardman at the left behind Mia, he has green color. But when the security SUVs push Mia and Tia away, we can see that Dash Boardman has now a brown color.
• In the tractor tipping scene, Mater demonstrates to Lightning how to do it by using two tractors before Lightning’s first try. And then, when Lightning accelerates to make the loud noise and we have a wide open shot of the field, we can see that all the tractors in the field are still turning. Missing are the two already tipped by Mater. However, it could be that those tractors got upright before McQueen tips all of the tractors, according to the video games.
• When the car crash starts, you can see Chick Hicks knocking Winford Bradford Rutherford off the track, who then crashes into Murray Clutchburn, who then crashes into Johnny Blamer. Look carefully in the shot after Chick says “Ha! Get through that McQueen!” and you’ll see that James Cleanair is shown instead of Murray Clutchburn.
• On the last lap of the first race, Lightning blows a tire and swerves a bit while Darrell Cartrip says, “Oh no! McQueen has blown a tire!” The camera changes scenes for about 3 seconds and then shows the large TV. However, the TV shows the same exact swerve, and the signal couldn’t possibly take so long.
• 
  Shot of the confetti underneath McQueen and Chick, and not hitting them.

  After the first race, in the scene where Lightning is rushing out on the stage thinking he is the winner, loads of confetti is shot out when the Kingand Chick Hicks gets onto the stage. The confetti is then falling down, but not a single flake hits any of the cars. However, in the following shots, you can see plenty of it on the stage underneath the cars, even though they haven’t moved.

• Before Lightning falls off the end of Mack‘s trailer, you can see Snot Rodand one of the other cars running alongside the trailer. But when the camera moves to show Lightning coming off the trailer, you can see alongside the trailer in the background, and the cars are now missing. The camera switches back to the front of Mack, and the cars are back alongside again.
• When the Delinquent Road Hazards are fooling around with Mack, the camera does a closeup shot of Snot Rod revving his engine, and you can see the throttle butterflies closing when he revs higher. They should be opening, not closing, with higher revs.
• Before the start of the final race, when Chick is bragging to Lightning, the sun is reflecting off of Chick’s “C in a thundercloud” sticker, displaying a clearly visible letter C on Lightning’s paint. Based on the orientation of Chick’s sticker, the C should be displayed backwards in the reflection, not forward as it is shown.
• An apparent rendering error: as the camera pans through a crowd entering the stadium where the final race is being held, a brown car that is just to the right of the center of view has his left front wheel showing through his fender until the camera gets closer.
• An apparent rendering error: at the scene when Luigi offers his service to Van and Minny, we can see Guidojuggling wheels. When Guido finishes his juggling with all the wheels over his right lift, his real wheel seems to overstep his own bodywork.
• At the scene of the final race, when Lightning McQueen discovers that his friends from Radiator Springs are his pit crew, the camera shows the pit crew, and we can see that Mack has his headphones on. Right after that, another camera shows a closer view to the pit crew, and Mack doesn’t have his headphones on anymore. But on the next scenes of the race, we can see that he still has the headphones on.
• During the final lap of the first race, the last 2 cars continually change from Kevin Racingtire and Slider Petrolski to Todd Marcus and Claude Scruggs, despite the fact that the four cars are nowhere near each other.
• When Lightning rides on the wall to pass Rusty Cornfuel and Floyd Mulvihill, he passes Winford Rutherford and Sage VanDerSpin, and goes to Slider Petrolski, however, if you notice, past him are Todd Marcus, Ernie Gearson, and Winford again, as if there were 2 RPM cars with the same body, but there isn’t.
• When the car crash starts, after the camera zooms out you can see that Eugene Carbureski made it through the wreck, clearly, but in the next few frames it shows Eugene in the wreck.
• At the beginning of the film, The King’s eyes are brown. During and immediately after his wreck however, his eyes are the same shade of blue as his paint. At the end of the movie, while The King, his wife and Junior are in the museum, his eyes are brown again.
• When the jets are flying over the Los Angeles International Speedway, Pixar Animation Studios can be seen in the background. In reality, Pixar Animation Studios is in Emeryville, not Los Angeles. However, it could be that in the film, there is another Pixar Studios in Los Angeles.
• At the very beginning of the film, Lightning McQueen claims that there are 43 racecars competing in the race (just like in NASCAR in real life), but in the actual race, we only see 36 cars racing each other.
• In the first Piston Cup race at the beginning, Darrell is wondering if McQueen will be the first rookie to win a Piston Cup. Doc Hudson won his first Piston Cup in 1951, but the Hudson Hornets were first built in 1951, meaning that Doc may actually be the first rookie to win a Piston Cup. But Darrell also says “… and land Dinoco?”, so he could mean first rookie to do both.
• Chick Hicks was not seen behind Lightning when he tried to stop right before the finish line at Los Angeles.
• The first teaser poster showed Lightning McQueen under a tarp with part of it hiked up to show his smiling mouth. For some reason, that illustration of him for some reason showed him with rear-view mirrors, something actual stock cars (and McQueen himself in the actual film) do not have.
• During the close-up of “Petrol” Pulaski giving Winford Bradford Rutherford oil, Chief RPM can be seen colored white. However, during the scene with all of the pit crews, he is colored yellow.
• In the scene where Mater is rounding up the tractors while McQueen is chasing Doc, the DVD and Blu-ray subtitles mistakenly refer to the tractors as trucks.
• When Luigi says to Sally that he has tires at his store, the DVD and Blu-ray subtitles mistakenly don’t capitalize the “t” in “tires”.
• When Mater explains that Radiator Springs is the cutest little town in Carburetor County, the DVD and Blu-ray subtitles misspell Carburetor County as “Carburettor County”.
• In some scenes, both of Mater’s back tires are brown. But in other scenes, they are yellow on the right, and silver on the left.

Ratatouille (2007)

• Right before Chef Skinner exits the kitchen in an attempt to stop the soup from being delivered, there’s no ladder to the right of the door. Then, when Skinner re-enters the kitchen, a ladder appears next to the door.
• Right before Anton Ego eats the ratatouille, there is a shot of the right side of his face and his left hand holding a fork with the ratatouille on it. Very close to his left hand, in that same shot, is also a glass of wine, a lamp, and a small pot of flowers. Then, right before the image zooms away from him into his flashback in the next shot, after eating the ratatouille, the shot shows a glass of wine and now a bottle of wine next to his left hand, while the lamp and pot of flowers moved closer to his right hand.
• When Colette asks, “What did the customer say?”, there is no ladder in front of the stove. Then, right before Skinner tastes the soup, he’s able to pull out a ladder from the front of the stove.
• When Remy fixes the soup that Linguini has ruined, Remy uses a large wooden spoon to stir the soup. When Remy is caught cooking by Linguini, he leaves the spoon in the soup. A few seconds later, the spoon is no longer in the soup and disappears.
• After Chef Skinner says “No, no, no, no, no, no!” he gets up and kicks a green cabinet, causing the top and bottom drawers to open. The screen then pans left as Skinner opens some window blinds to view Linguini. After a quick cut to his lawyer, it cuts back to Skinner. Skinner walks back to his desk, and you can clearly see the bottom drawer of the cabinet is closed.
• At the start, Mabel prepared her shotgun. When she ran out of bullets, she dropped all of the bullets in the box, grabbed one bullet, and the rest of them are still on the floor. But when the other rats got caught and Mabel runs away, the other bullets are gone.
• The DVD version of the film displays many of the signs, documents and papers in French, however the version run in theaters and television stations displays them in English. This was likely done for ease of understanding; DVDs can be paused whilst one Googles a term, but not everybody has the equipment to pause a live TV broadcast, and movies cannot be paused.

WALL•E (2008)

• After the escape pod scene (but before the “dance”), WALL•E uses a fire extinguisher to fly back and forth. Between every camera shot except one, all the extinguisher particles disappear instantly.
• The sky over WALL•E’s city is totally covered, from horizon to horizon, with thick brown clouds. When theEarth is seen from space at the beginning of the film, there is no such cloud cover anywhere on the planet. The clouds appear out of nowhere as the camera zooms down.
• When EVE is reactivated on the Axiom bridge, she “sits up” on her transport bed. The camera shot changes and she’s “standing” well in front of the bed rather than on it or even right next to it.
• As a trash compactor, WALL•E doesn’t function logically. When he fills his chest compartment with garbage and runs his internal compactor, the cube that exits his body is the same volume as the trash he puts in, despite that trash having been compacted. He doesn’t add extra trash to fill the empty space after running the compactor — there are three scenes that show him filling up only once with loose garbage and then ejecting a densely compacted cube.
• Factual Error: Technically speaking, it would make more sense to have WALL-A-like robots cleaning up Earth instead.
• No plant could really survive the vacuum of space and being shaken around as much as happened to it.
• L-T was orange when he was in the repair ward, but was later yellow when he was following WALL•E, EVE, M-O and the other rejected bots to the Lido deck.
• EVE and M-O were dirty when they were in the airlock disposal, but were later clean when they returned to Earth.
• When WALL•E and EVE are in the trash area on the Axiom, the WALL-As blow all the cubes into outer space. The next cubes they make are the two that WALL•E and EVE are in. When they put the cubes in the airlock, there are many cubes there that weren’t there before.
• In the film, the Kuiper Belt is depicted as a dark interstellar cloud, while in real life, it is an Asteroid Belt-like region located just beyond the orbit of Neptune and contains a majority of the Solar System’s dwarf planets like Pluto, Eris, Haumea, and Makemake.
• REM-E got stuck on the cube where EVE got stuck. When the cubes go out in space and EVE saw WALL•E, REM-E was on the ground. But for some seconds, REM-E had vanished.

Up (2009)

• Factual error: The number of balloons shown wouldn’t be nearly enough to lift the house, much less rip it loose from utility pipes/cables. Pixar researched this and decided to go with what looks good on film, rather than with accuracy.
• When the house first detaches from its foundation and becomes airborne, Russell is nowhere to be seen, although every angle of the house is shown, including underneath, the front porch and the back porch. He knocks on the door and tells Carl he chased a “snipe” under the porch – but he can’t be seen after liftoff and prior to knocking. It’s also worth noting that the short George and A.J. showed that Russell was clinging to the bottom of the house when it took off, when he clearly isn’t seen doing so in the film.
  • If the porch is seen from a side view, you can see that there is a tiny space between the top of the porch and its foundation on the ground (which is at the same level as the rest of the bottom of the house). Therefore, it is possible, though unlikely, that Russell was in this space when the house lifted.
• Factual error: An un-powered balloon or airship (such as Carl’s house) isn’t steerable; it goes where the wind is going (Boats and ships can steer because they have the friction of the water to push against; airships such as Muntz’s can steer because they have huge engines to push them in the desired direction).
• When Russell is complaining, when he says, “Zoology.”, his face is covered in dirt. When Carl tells him that he can do his business in the bushes, he is instantly clean.
• After trying to get his balloon back, young Carl falls and breaks his arm. The ambulance that picks him up has a modern-day electronic siren, when in the 30′s, it would be a mechanical siren and would be much smaller.
• During the scene where Carl and Russell start to walk the house towards Paradise Falls, Carl looks up to the house and says, “Don’t you worry, Ellie. We’ll get our house over there.” The next shot shows the picture of Ellie, and through the window, you can see Carl and Russell towing the house from further away. You can hear Russell say, “This is fun already.”, which transitions into a different shot of them. In this shot, Carl and Russell are towing the house from almost directly underneath the house, instead of more out in front of it.
• During the first night Russell and Carl spend in South America, Russell tries to pitch up a tent, which results in a self-injury. A few cuts later, the injury is gone. (However, this is likely more of a stylistic choice than an unintentional mistake, as the producers likely didn’t want to show Russell with a red patch over his left eye for the rest of the movie.)

Toy Story 3 (2010)

• A graph editing mistake: When the toys are discussing if they’re getting thrown away in the garage, look very closely and you’ll see Mr. Potato Head’s shoes slightly sink into the ground (only in the trailer).
• In the beginning of the movie, we see Mr. Potato Head has only one eye so Andy can pretend he’s wearing an eyepatch. But later on, when Andy’s Mom is filming him he suddenly regains his second eye.
• In the scene where they try to reset Buzz Lightyear, Barbie removes two screws that hold Buzz’s back compartment. However, at no point, they did not re-screw the compartment closed. It just stays shut for the rest of the movie.
• When the toys first arrive to Sunnyside and are still in the box, the side of the box clearly says Sunnyside. After they fall out, Lotso is showing them Sunnyside and the scene shows all the toys looking at them. If you look at the box in the background it no longer says Sunnyside.
• The model train in the prologue in various storybook illustrations and promotional media, for some reason, despite being pulled by a Civil War-era 4-4-0 steam locomotive, actually lacked a tender despite the locomotive not resembling a tank locomotive. However, in the actual film, that locomotive correctly has that tender.
• Buzz’s toy position is when he is frowning while his teeth are showing. However, in this movie, he now does a happy face while showing his teeth.

Cars 2 (2011)

• 
  Comparison of a shot where Lightning has his correct wheels, with the scene where he has the wrong wheels

  For the Tokyo race, Lightning McQueen has logically on his racing wheels. However, in one scene, when the start lights are showing, McQueen is seen with his party wheels on instead of his racing wheels. In the rest of the race, he has his race wheels on.

• When Mater was at the airport entering the terminal, you could see a mark on his side that showed that his symbol was scraped off. But when he was going through the gate, the mark wasn’t there anymore.
• 
  The black Mercedes-Benz on this image can be seen going half-through the floor

  Some cars in the crowd attending the Porto Corsa race have sank through the floor.

• 
  Shot of McQueen forming the World Grand Prix logo

  Although Lightning McQueen had not joined the World Grand Prix yet, you can see him forming the globe in the ad on The Mel Dorado Show. However, it could have been finished with every racer that was invited before Lightning declined the invite. But even then, it is inconsistent that he appears with his World Grand Prix customizations, that he hadn’t then. It could be that they had McQueen’s World Grand Prix customization planned before he declined the invite.

• In the bathroom scene: When Mater enters the bathroom, none of the stalls are open except the one he goes into. When Rod “Torque” Redlinecomes in, they are all open except the one Mater is in. There is only about 15 seconds in between Mater and Rod “Torque” Redline, so it is very unlikely that all the cars had exited their stalls by then. However, it could be that the cars exited their stalls when Mater sees the toilet and before he went into his stall, as well as that when a mini blue car exits the stall Mater goes into.
• After Lightning McQueen, Mater, Finn McMissile, and Holley Shiftwell confront Professor Z, you can clearly see that he is attached to Finn. But right before Holley tazes him, he is not attached at all. But it might be that Finn unattached Professor Z while the bomb was taking a minute off.
• When Mater goes to hook up to Victor Hugo from Karl Haulzemoff, he attaches his hook to the front left wheel. As Mater pulls him in to the back room of the casino to join the rest of the cars, the hook is attached to the front right wheel. However, it is possible that Victor made Mater change wheels.
• In the Radiator Springs Grand Prix, Lightning had his Allinol sign when he introduced Francesco to Sally. But when he backed up, you can see it’s not there.
• When Holley, Finn and Mater are trapped in Big Bentley, it is emphasized that they move closer to their death every minute, starting at the top of the hour. Later, when the clock is being reversed, it shows fifteen minutes had passed. Originally, when Holley and Finn were moving closer to the gears, they only moved a few times, suggesting only a few minutes had passed.
• At the World Grand Prix welcome party, Francesco Bernoulli appears during a short scene with different wheels, with gray wheel trims and no inscriptions.
  
  The shot where Francesco bears different wheels, compared with another appearance with normal wheels.
• When Mater was on the phone, he was not on screen on the TV. But when Francesco was being mean to McQueen, he somehow knew that Mater was a tow truck even though he wasn’t on screen. However, it could be that Mater said that he is a tow truck before McQueen and Sally came in. Another explanation is that Francesco thinks that all tow trucks sound like Mater, and so he calls him one as well. The most likely explanation of this is that McQueen is world-famous and thus various details about him, including his friends, are widely known as is the way with celebrities, although Darrell Cartrip said that he doesn’t know Mater when he actually did in the Cars video game.
• After the bomb was deactivated, two police cars surrounded Miles Axlerod. One of them was black and the other one was grey/gray with blue and green squares. After Mater opens Axlerod’s hood/bonnet to show his engine, the black police car then changes, matching the other one.
• When Mater wakes up from his nightmare, the time on Big Bentley says 3 o’clock, but it chimes 5 times.
• When Guido tries to take the bomb off Mater, the time on it said 2 minutes and about 38 seconds. But when Mater bows to the Queen just before the guards notice the bomb, the time on it said 1 minute and about 52 seconds. McQueen and Mater’s conversation and them flying to Buckingham Palace took more than a minute between these scenes.
• When the bombs on Tony Trihull’s magnet explode, the explosion was big enough to kill Finn McMissile and Professor Z. However, in the following scenes, they were still alive. Although, it is likely that the two were able to escape the detonation range before it exploded.
• In the credits, there was a paper revealing that Mater was knighted on Tuesday 15th July 2011. In real life, 15th July in 2011 was on a Friday, not Tuesday.
• In the scene right when Mater and Lightning enter Buckingham Palace, look in the background. There is a mountain there. Then the scene shows Finn and Holley entering, then it has Lightning and Mater moving closer to the Queen. In that scene, the mountain is a now a big building.
• When Mater was driving away from McQueen due to the bomb, Darrell Cartrip says he doesn’t know Mater, even though he does in Cars: The Video Game.
• When Mater was driving through London using the rockets, and had McQueen holding on to him, there was a blue Gremlin telling Grem and Acer that Mater and McQueen are coming their way. Beside the blue Gremlin was a sign on a wall which was mentioning about some drinks in a cafe, including oil teas. One of the words on the sign was “favorite”, which was spelled “favorite” on the sign, even though it was being shown in London (and showing the British name for gasoline: “petrol”), as the UK spells “favorite” with a “u”, spelling it as “favourite”.
• Although Tokyo Mater ended with the villain Kabuto being stripped of his modifications after losing to Mater in a drift race, in his appearance here, he can be seen with his modifications again. However, it could be that was another car that looks like Kabuto, perhaps the story never happened, or it is most likely that Kabuto got his modifications back after the story.
• In the film, Holley Shiftwell gets a dent when she prevents Grem and Acer from getting Lightning McQueen and Mater. However, in Cars 2: The Video Game, Kinect Rush: A Disney/Pixar Adventure and Disney Infinity, the dent isn’t there.
• When Acer and Petey Pacer discover that Finn is still alive when they try to get Mater, Finn was holding a fire extinguisher and shoots foam onto their eyes. Acer and Petey Pacer then couldn’t see where they’re going. Petey Pacer and Acer were driving in the same direction until Petey Pacer turns left and runs into a police car while Acer went on straight ahead. In the shot when Petey Pacer starts to turn left, Acer is driving towards the poles holding the crowd and past the pit building. But in the shot when Petey Pacer runs into the police car, Acer is then shown driving past some buildings. Wrong place. However, it could be that when Petey Pacer is driving left, Acer was driving left as well, and Petey Pacer drives left again before Acer goes on straight ahead.
• On the race track in Tokyo, the road leading to Rainbow Bridge seemed to have a few mistakes. In reality, the road has a railway in the middle. However on the race track in the film, the railway track isn’t there. Two roads connect to Rainbow Bridge. In the film, the road that was part of the race track goes over the other road on Rainbow Bridge. But in reality, the two roads are the opposite.
• When McQueen says that he will still use Allinol in the final race in London, he mentions about Mater, which Mater had his eyelids pointing up. In the next shot, when Brent Mustangburger mentions to the audience what McQueen said about still using Allinol, Mater’s eyelids then suddenly change their position, so it should be that it might have skipped a bit.
• When Grem uses the pulse generator to try to kill McQueen in the last race, the racers seem to be driving across Westminster Bridge and past Big Ben/Big Bentley. However, when Mater got free and drove out of the clock tower, it looks as if there is traffic on that same road leading to Westminster Bridge.
• In the introduction before the first race in Tokyo starts, when the announcers mention Lightning McQueen, there was a box showing McQueen from on the track when the rest of the screen shows an aerial view. Miguel Camino is between McQueen and Nigel Gearsley, which all of the racers are turning side to side in the test before the start of the race. Camino is only seen once on the box showing McQueen from his front, and only Gearsley is seen on it for the rest of the time that it is being shown.
• When John Lassetire (John Lasseter) is in his World Grand Prix customization, his eyes were brown. However, when he changed it after the World Grand Prix, which he was green with wooden doors, his eyes then changed to blue, which is actually Lasseter’s eye color.
• During the introduction before the race in Porto Corsa, when Darrell starts talking, the DVD and Blu-ray subtitles accidentally say Brent’s name when it shows who is talking when that character’s mouth is not shown.
• The circuit of the London heat of the World Grand Prix goes through the middle archway of Admiralty Arch. In reality, this archway is opened only for (rare) State occasions, and only the Royal entourage is allowed through it; in everyday traffic use, only the other two arches are used. However, it could be that in the film, they were allowed permission to use the middle archway in the circuit.
• Before you see Finn McMissile at the party, on a bridge, there is Kabuto, but his eyes were brown instead of green. However, it may be due to the fact that Kabuto was probably wearing green contacts in Tokyo Mater, and that being of Asian origin, that brown is actually his normal eye color.
• Despite the above, Ramone and Flo, despite being implied to be Latino and African American judging by their accents, actually both have blue eyes.
• When Grem and Acer leave Big Bentley, they use a lift/elevator. In real life, the Elizabeth Tower does not have a lift/elevator. This is most likely artistic licence; unless cars in the Cars universe have abilities we haven’t seen, there’s no way they could drive up or down the narrow, steep and winding staircases in the real-life version of the tower.
• 
  Denise Beam in the men’s bathroom.

  In the international version of the DVD/Blu-ray, several instances of written English text have been replaced with universal symbols or removed. However, on several occasions, they switch back to the original appearance, or that the original appearance is shown, then the new appearance. For instance: The World Grand Prix racers’ names on the wall of the pit building and the box with text showing when McQueen is talking about what fuel he will use in the final race in London.

• The red telephone boxes in London are still human-sized in the Cars world, making them not big enough for the cars to get in.
• When Mater goes into the bathroom, Denise Beam can be seen leaving the bathroom. This is a mistake because Denise Beam is a female, but she was in the bathroom for males.
• For some reason, like the oil rigs, the Pyramids of Giza in Cairo, Egypt as seen in the closing credits aren’t car-ified. However, the Sphinx of Giza is.
• In the subtitles for the audio commentary on Cars 2, John Lasseter describes Mater with “two miniguns” but the subtitles say “two many guns“.
• In the subtitles for the iTunes and Apple TV versions of the film, Stephenson‘s name is misspelled as “Stevenson.”
• At the World Grand Prix race in Tokyo, there is a short dirt track section of the course during which Francesco loses his lead and is “brought to a screeching halt.” However, at the end of the film when the racers compete in Radiator Springs, Francesco does not seem to have any trouble driving or turning on the dirt.

Brave (2012)

• One scene shows Queen Elinor dressing Merida up in a corset, but corsets weren’t used until the 17th century.
• One of the suitors is said to have defeated a group of Vikings while another is said to have defeated some Romans. The Vikings did not raid Scotland until 800 AD, while the Romans left the British Isles century.
• The DunBroch Family can be seen eating with forks, but forks weren’t invented until the 18th century.
• King Fergus can be seen with a Harris’ Hawk, but that bird is native only to North America, not Europe.
• When Merida is climbing the Crone’s Tooth, the cry of a Red-Tailed Hawk can be heard in the distance. Red-Tailed Hawks, like the Harris’ Hawk, are also found only in North America.
• The arm wound Merida received after accidentally being attacked by Bear Elinor near the end of the film mysteriously heals itself after her younger brothers (also now bears) free her from unlocked in her room so that she can stop her father from almost killing her mother.

Monsters University (2013)

• In Monsters University, Mike and Sulley met in college. But at the beginning of Monsters, Inc., Mike tells Sulley “You’ve been jealous of my good looks since the fourth grade, pal.” Although Mike could just be exaggerating the fact that Sulley has been jealous of Mike’s good looks for a long time. Sulley had also stated in the original trailer for Monsters, Inc. that they knew each other in fifth grade when Mike would not pay attention during geography classes.
• At the beginning of Monsters University, Mike and Sulley seem to meet for the first time, but in one of theMonsters, Inc. teasers, Sulley mentions that Mike was busy writing love letters in fifth grade. He makes this remark after Mike mistakes Magnolia for Mongolia.
  • It could also be that they were in third and fifth grade together and did not realize this until after the events of the film.

Via Pixar Wiki.