Revealing mistake: When Howard is reading the book about how to "score with babes" his lines are on a piece of paper on the page. You can see this by the different color papers. (00:46:25)
Revealing mistake: When the needle is set in the pool of water in a stump to act as a compass the pool has been carved out with a chain saw very recently and clumps of the wrong moss set around the rim like it belonged there.
Revealing mistake: When Guido tries to escape camouflaged as a woman and is stopped by the guards the second from right prisoner cannot help laughing. (01:50:10)
Revealing mistake: When Gere is trapped in the police car and the assassin attempts to shoot him, he fires several shots into the window at Gere's head and every single shot misses yet they do not strike his lawyer or the other window. Where exactly did the bullets go?
Suggested correction: They do hit the window. You can see the bullet holes in the glass from a later camera angle.
Revealing mistake: Towards the end of the film when the Yankees are trying to close out Game 6 of the World Series you can tell the "real" footage they use is not from the World Series. They are playing the Atlanta Braves in the World Series but you can see the Baltimore Orioles logo on the field in a number of shots.
Revealing mistake: When Earl crashes his Explorer through the police barricade, his car hardly gets any damage, proving the barricade is far more lightweight than a real one.
Revealing mistake: Johnny Depp is at the house of the pimp guy who assaulted his wife. They have a fight, and Johnny kills the pimp but he is clearly breathing when he is supposed to be dead.
Revealing mistake: During the flashback scene where Max is describing the night of the kidnapping, the rainfall at the marina is obviously fake. The "rain" is being blown at an odd angle from an off-camera fan, and the surface of the water is practically still with no raindrops. (00:40:50)
Revealing mistake: The background scenery in the outdoor shots doesn't look anything like Illinois, where the movie's supposed to be set. It's much more like what you'd see in California - where the actual filming took place.
Revealing mistake: During his final speech Rudy projects a video of Donny Ray on a screen. When he rolls up the screen at the end, the projection of Donny Ray's face should still be visible on the wall behind. (01:57:45)
Revealing mistake: When Jim plays the organ for John he switches to a lively piece at the end of his performance, but he stops moving his arms and hands. (00:28:30)
Revealing mistake: During the fighting scene outside the general store, Taggart hits one of the bad guys square on the nose two different times. After the second time, when the man is lying on the ground saying "Oh, my nose!", his hand's supposed to be holding his nose in pain but instead his hand is up around his forehead instead (his arm sort of blocks this but you can still see it).
Revealing mistake: In the basement shootout, when a man is shot in the stomach, we see a close-up of his guts hanging out, and there's tape around it.
Revealing mistake: In the locker of the Gentleman Caller there are multiple newspaper clippings. When Cross looks at the one talking about his niece, it just does not talk about his niece. The clipping is on camera long enough to be able to read without freeze frame, and it's talking about things like police brutality and apartheid (actual word used), entirely unrelated to the fake headline and picture caption. (01:18:00)
Revealing mistake: When Mr. Eddy is shot in the head and killed, there is an extremely quick shot that you can catch of what is a puppet's head exploding from the shot, before it cuts to Mr. Eddy falling back dead.