Continuity mistake: The father tears the children's advert for a nanny up into 8 pieces, but when it comes out of the chimney it's in far more bits.
Continuity mistake: When Rudolph and Hermey sing the Misfit song and they are crossing the wood log across the crack, at first the shot is under Hermey and it shows Hermey crossing half of the log. When the shot comes above Hermey, he is once again where he started. (00:23:25)
Continuity mistake: During the scene in front of the restaurant (after the VW van takes Harold's parking spot) every cut brings continuity errors in the position of the passersby. The natural light also changes as you can see by the shadow on the sidewalk. (00:27:10)
Continuity mistake: When the clerk looks in close-up at the bank cheque written in disappearing ink by Fantomas, the background has nothing to do with the desk, and the distance is all wrong as well. (00:03:10)