One Crazy Summer (1986)

Continuity mistake: When the heroes dedicate their boat, Demi Moore's character knocks a hole in the side of the boat. In subsequent shots, the hole looks like it's been partially repaired.

Continuity mistake: When Hoops is talking to Demi Moore's character on the beach and he draws her a picture of a gorilla, you can see the page is already drawn on before the animation scene takes place.

Factual error: When Ack Ack is collecting shells on the beach for his father, he's really collecting shell casings... which should be where the guns are fired, not where the explosions are.

Hoops McCann: Will you watch where you're going! We're heading for the docks.
George Calamari: We've gotta make the boat.
Hoops McCann: Boat? What boat?
George Calamari: What, did you think we were driving to Nantucket? Come on, it's an island.
Hoops McCann: You never mentioned any boats! I hate boats! I'm not getting on any boat.
George Calamari: I beg to differ.

Egg Stork: Ack Ack, let me tell you a little story. A story about a little fat kid who everybody made fun of, and nobody liked and he had a twin brother, and everybody said he never looked like his twin brother, but he wanted to.
Ack Ack Raymond: Egg, where you that little boy?
Egg Stork: No! No! But I used to beat the shit out him!"Why are you so fat? Why are so ugly?" Aaagghh.
Ack Ack Raymond: Great story, thanks.