Continuity: During the scene where the boss finds Norton's rules, before Norton gets up to talk about stalking the office with a machine gun, look at the cigarette smoke coming from an ash tray behind him. It appears, then suddenly disappears.

Revealing: In the scene where Brad Pitt's character is cutting out newspaper articles about Project Mayhem's mayhem, the headlines refer to their deeds but the actual writing in the articles has absolutely nothing to do with movie. They seem to all come from one article about some town council meeting.

Continuity: Near the end of the film when Tyler throws Ed Norton down the steps we get the view from a security camera, however we can see the camera we are supposed to be looking through in the top right hand corner.

Continuity: When Tyler Durden goes to Marla's apartment to prevent her suicide, he removes a cigarette from his mouth and gestures as if he is throwing it down on the floor at the top of the stairs. Then the cigarette is back in his mouth when he proceeds to the door, at which point he really does throw it down on the floor.