Continuity: In the scene where Tom Hanks goes back to his mother's house when he's "BIG", he tries to convince his mother it's him by telling her his birthday: November 3rd. However, in the scene (with John Heard and Elizabeth Perkins) showing the milk carton of Tom Hanks "missing" as a young boy, his d.o.b. is shown as 1/20/75.
Great sites
Mistakes
When Josh and Billy arrive at the hotel, the concierge takes his hand with a cigarette to his mouth, but from opposite angle his hand is down counting the money. See more...
Trivia
The scenes from the amusment park in the movie were filmed at Playland, in Rye, NY. See more...
Big mistakes
Continuity: When Josh just becomes big, he hands his baby sister a wallet. She lowers her hands beneath the border of the playpen. The immediate angle, barely a frame later, shows her hands above it.
Audio problem: In the scene when Josh (as Tom Hanks) comes back to his house to talk with his Mother for the first time since becoming "big", she starts screaming and backs away from him. She backs into the piano she says "Go away, go away." but her lips don't move at all.
Big trivia
The scenes from the amusment park in the movie were filmed at Playland, in Rye, NY.