Best animated movie mistakes of 2004
Continuity mistake: When Bob Parr goes to his boss' office to be told off, you can see the door in the background is closed. Bob gets up and walks toward the door which he has now supposedly opened. You never see it physically come into shot, but when Bob is told to close the door, the shot hasn't changed but you can now see the door in shot being closed, which means the door suddenly opened itself. The framing of the shot never changes, therefore we should have seen the door in shot.