Continuity mistake: In the Christmas morning scene after Winhert's lawyer leaves, while Nora says, "Oh, the mystery's all gone" she crosses her arms in front of her, in the next shot her arms are crossed behind her.
Continuity mistake: When Peter Pig and Donald Duck are dancing outside the "Idle Hour Club", you can see the door to the Club is open, but when the camera cuts to Donald, the door is shut, and in the next shot, the door is open again.
Continuity mistake: When Butch suggests to Stan and Oliver about getting a blowtorch to melt the lock off, the saw which Stan is using is by Butch. When Oliver says "That's a good idea!", we return to Butch in the trunk and the saw has gone.