In the car chase scene, the escaped convict and police are exchanging gun fire between cars. In the different shots of the police car, the bullet holes in the windshield appear and disappear several times. Also, when three shots have been fired at the police car there are four bullet holes in the windshield.
Richard Dreyfuss and Emilio Estevez were having a movie trivia contest on the set one day. Estevez asked Dreyfuss to identify the movie that the line "This is no boating accident" was from. Dreyfuss didn't recognize the quote, despite the fact that he was the actor who said it in Jaws (1975). Deciding that this was too good to pass up, this incident was re-enacted for the film.