Continuity mistake: When Victor enters the room it appears that the piano keys are going the wrong way - Emily is playing the high notes with her left hand. I thought this was done on purpose, but when Victor sits down and begins to play, the keys are back to normal.
Continuity mistake: During the opening credits when the two butchers are cutting off fish heads a cat is moving its tail back and forth. If you watch closely the tail will stop moving on the left then change to the right side before moving again.
Continuity mistake: The scene where Victor tells Emily to stay in the woods because he has to see his parents, Emily gets the maggot out of her ear. When the maggot is in the snow you see Emily's head right by the screen and no footprints are spotted. But when the maggot tells her something about Victor, footprints appear only a few inches from the maggot.
Continuity mistake: In the scene where Lord Barkis and Victoria are having their wedding feast, all of the guests have been served chicken. But, when the corpses crash the feast, and Bonejangles is standing behind Finis and Maudeline, their chicken has been replaced by soup bowls. ("There's an eye in me soup.") (01:00:15)
Continuity mistake: In the opening scene where Mayhew steers the carriage past the Everglot mansion, we see it is connected to a short adjoining wall on its front right side. However, in the scene where Victor is attempting to climb in Victoria's room the wall is now suddenly gone and the mansion side features a balcony. (00:02:12 - 00:36:18)