Continuity: In the war sequence, the soldiers give their sergeant a clock which is placed on the edge of the mound they are hiding behind and is clearly visible. In the next shot, the clock is gone.
Revealing mistakes: In the vomiting scene right after the bucket is taken away, the end of the hose the liquid comes out of can be seen.
Miscellaneous: During the World War II segment Eric Idle can be seen stifling laughter when he is supposed to be dead.
Continuity: In the classroom scene the young student seated in the rear right corner appears and disappears three times in successive shots.