Other mistake: In the final scene, where Ben realises he's inside the mirror world, everything is mirrored. However, the word ECNALUBMA is visible on the ambulance. Since the word ambulance is always written mirrored on ambulances, it should have shown AMBULANCE.
Continuity mistake: In the scene where they get the spear from the statue out of Lisa's shoulder, her shoulder shows a lot of blood. In the next scene the blood is all gone, including the wound. (01:00:00)
Factual error: Outside the Territory Hotel, during the storm, and once earlier in the movie, the taxi cabs are shown with the modern "flip over" vacancy/hired signs that were not used then.
Continuity mistake: When Lance and Seth Green are riding in the buggy, they are talking for a few minutes. During this time the side shot will show Lance with his arm all the way around Seth's back/shoulder. However, when the camera changed to a full shot, Lance's arms were at his side, nowhere near Seth's back or shoulder. This happened several times during this scene. (00:40:35)
Factual error: When Tom calls Hannah from New York (and she is in Scotland) there is still bright daylight in New York. When Hannah answers she says it is 3am in Scotland. With a time difference of only 5 hours, this would mean it would be 10pm in New York and therefore dark.
Visible crew/equipment: When Alexandra is being harassed by the hagglers, she gets into a man's truck after he tells her he knows where to take her. As the truck drives out of the shot the camera is reflected in the window.
Continuity mistake: When the bus crashes, the aerial shot shows no garbage by the rear door. In the next angle it's full of trash.
Factual error: As a trash compactor Wall-E does not 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 does not 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. (00:02:30)
Suggested correction: You haven't noticed the exact shape of his body. The back sticks out a tad. Garbage fills the space and the back pushes in to compress it.
Continuity mistake: When Brown pours water on Shane to wake him up, the wet patch on his clothes changes appearance between shots.
Factual error: In the very first scene a giant squid swims past Fujimoto. It swims in the wrong direction however, with its tentacles in front. In reality squid swim backwards.
Audio problem: Right before the end credits, as Grave Robber says "But Genco may survive if it undergoes surgery", right as Grave Robber says the word "may", his lips briefly don't match what is being said. (Confirmed in DVD commentary.).
Factual error: The aged brave, singing his death chant, has fillings.
Factual error: In the hotel bar just after his lecture, Frank and his buddy are talking. Frank says that his wife "set the clock forward" (and thus he was late for the lecture on efficiency). His buddy asks: "she actually set the clock forward?" Ryan responds "she set it forward." Thus, he should have been early, and not late for his lecture. She should have set the clocks backwards to make him late.
Revealing mistake: When it shows the video of Tom Cruise on Youtube, on the right side of the screen, the descriptions of the other videos repeat themselves.
Continuity mistake: When Shifu performs the Wuxi finger hold on Po, in one shot, we see all of Po's fingers, except the one Shifu is holding, are closed to his palm. In the next shot, all his fingers are open. (00:22:05)
Suggested correction: If you slow down before the part where the camera pans onto Po when he's surprised, his fingers open.
Factual error: The electrical power grid fails, depicted by a series of shots of city blackouts and equipment shutdowns. When the power goes out, the lights of an oil refinery go out as well as the flare. In actuality the exact opposite happens to a flare when powered equipment such as compressors and cooling devices fail simultaneously. The flare is not an electrically powered device and is designed to stay lit during power outages. All excess pressure is immediately vented to the flare stack within a second, causing an enormous flame and smoke cloud that will be visible for several miles.
Factual error: Walt's medical records contain an error - on the left side of the folder, his address is listed as "Detroit, CA" and it's correctly listed as "Detroit, MI" on the right side, although as pointed out in another entry, the house number is completely wrong in the medical records.
Revealing mistake: Even though Drillbit's pinkie was supposedly cut off by the sword, you can see it is just bent out of sight.
Plot hole: The newspaper headline showing young Alex being rescued from a crate is dated April 8, 1972. In the next scene, we see young Alex dancing in the Central Park Zoo, and watching him are Marty, Melman and Gloria as baby animals. This makes no sense at all. In the first film, Marty celebrates his tenth birthday. Key word: tenth. It is also known that the scenes of the main characters as adults take place in the present i.e. Alex confessing to breaking Marty's iPod. Seeing how the animals age quicker than humans, Marty, let alone his three friends, would have to have been born in the mid-1990s and the flashback scenes could not have taken place in 1972.
Revealing mistake: When Natalie Portman's character is about to be executed, if you look at the wall behind the executioner, you can see a modern metal drainpipe.