Character mistake: When Fred and Barney are about to be hanged, Betty and Wilma are in the car on their way to save them. Betty calls Wilma 'Willa' instead of Wilma. (01:09:00)
Character mistake: After the dodgeball game ends Jerry asks the referee if skyzone had a bar, but in the background he's already walking away.
Character mistake: When Jernigan chases the car, he tells the team, "It's heading south on Adams." The toy car then turns left, which means that the car should be heading east. However, Jernigan tells the team that the car is headed west.
Character mistake: When Tom goes into cardiac arrest, the doctor uses the defibrillator paddles on him, but she uses them whilst the hospital gown is still on him. A defibrillator must be used on bare skin if the electricity is supposed to get through to his heart. (01:08:55)
Character mistake: Mr Potato Head gets torn apart by baby Molly after the opening scene. When Andy returns to the room with Buzz everyone resumes their positions, but Mr Potato Head looks for his bits and sits under the shelf with the other toys.
Character mistake: When Princess Mombi is sleeping she is snoring, but she has no head.
Character mistake: In every scene George is with Mary, she never once wears glasses. However, when he meets her coming from the library after he was never born, she is wearing glasses. George is shown how he has influenced all the people in Bedford Falls over his lifetime, but having Mary's eyesight degrade to the point of needing glasses isn't one of them.
Character mistake: Jo says Laurie is a "captive like Smee in 'Nicholas Nickleby.'" There is no such character in "Nicholas Nickleby." The character Jo is referring to is named Smike.
Character mistake: When Gwen Piper is talking to Aggie in the soup pot at the beginning of the movie, Aggie addresses Gwen as Linda.
Suggested correction: Aggie says Gwen darling.
Character mistake: Meggie seems to have a different accent from her dad, Mo.
Character mistake: Quigly says that Preston "got away again" when he and Shae escape in the limo, but that was the first time that the trio found him after he got the money.
Character mistake: The Daily Planet newspaper headline "New publisher for your favourite paper" has "favourite" is spelled the British English way. Since Metropolis is in the United States it should be spelled "favorite."
Character mistake: When Bugs is reading the book, he says "Octopuses", but when we see a close-up of the book, it reads "Octopus."
Character mistake: The sign outside the Fortune Teller's tent says "Madame Zaza", but when Droopy enters the tent, Spike introduces himself as "Madame Zazu."
Character mistake: Pretending to be a witch, April says that the song the walkman played was obtained because "I shrunk four incredibly cool guys and I locked them in there." The Barrio Boyzz were five at the song's release. Did she let one Barrio boy go? Was one of the Barrio Boyzz uncool? (00:16:40)
Character mistake: When Bob Munro (Robin Williams) is behind the tractor, the speedometer shows that it is below 10mph. He then states that they are going twelve. How could he if they didn't reach 10mph yet?
Character mistake: Sabrina calls checkmate but the board is not actually in a checkmate position. (00:55:15)
Character mistake: When Nanny says, "Look, here's Lucky!" the puppy she picks up does not have a collar on, therefore that cannot be Lucky, as Lucky is one of the original 15 with collars. (01:16:48)
Character mistake: After Santa gives the children new clothes, Ray says that he and the mother can now raise the 9 children. The mother points out that they only have 2, but he points to the group of orphans to include them. However that makes only 7 children.
Character mistake: The score board during the game shows the Gas House Gorillas have the scores 10, 28, 16 and 42, for a total of 96 runs. But later on the announcer gives the score as "Bugs Bunny 96, Gas House Gorillas 95."