Character mistake: Hammond talks about all the things that went wrong when Disneyland opened in 1956. Disneyland actually opened in 1955. (01:32:10)
Character mistake: The correct spelling of stegosaurus is steg"o"saurus yet when Nedry steals the embryos, the freezer says steg"a"saurus. (00:55:50)
Character mistake: When Genarro is explaining to Hammond that he is at the park to report Hammond's progress to the investors, he says "In 48 hours if they're not impressed, I'm not impressed. We'll shut you down, John." He should have said "If I'm not impressed, they're not impressed" since the investors would be shutting down the park on his advice, not the other way around.