Revealing mistake: During the scene when Mr. Lyle is talking to the General (butcher character), his glove that he wears on his hand is removed to make a point about his thumb having been cut off. In the next shot, we see Mr. Lyle walking around the desk and putting his glove back on, and you can see his thumb folded under his hand as if the actor was trying to hide it and did not realize it could been seen from the camera angle.
Visible crew/equipment: In the scene where Jarod is being thrown into the swimming pool by Zed, the gang leader, as a sort of initiation, there is a shot where Jarod is tied up in chains sitting in a chair at the bottom of the pool. Another character is set to throw in the key just to the next of Jarod and he is supposed to fall over and get it. In the shot just before he falls over, you can see a crewmen's arm holding a chain attached to the chair in order to help Jarod fall over.