Continuity: Towards the end of the movie Dave takes Walley's jacket and uses it to help them slide down a cable. Before they slid down, Dave tells Walley to hold on, and Walley asks if they're going to be above the ground. Dave tells him no, and off they go. However, Dave is deaf, and reads lips, and Walley is standing behind him when he asks the question. So how did Dave read his lips if he wasn't looking at him?

Continuity: Wally and Dave exit the swamp after pushing the police car in. Look at Wally's legs; you can see a pair of Wellington boots underneath his trousers.

Revealing: In the scene when Dave and Walley are running with a car, Walley says that he heard some shots. Dave replies that he didn't hear anything, but as you know Dave is deaf, and he reads Walley's lips each time he speaks. In this scene, he wasn't looking at him, but answered.

Continuity: There is a scene with Richard Pryor crouched in a corner being shot at by bad guys. A statue behind him is hit and shattered. In the next shot, it's standing there like nothing ever happened.