Continuity mistake: When the carollers are singing outside Scrooge's home, Foghorn Leghorn has no scarf on. When Scrooge races out of his house to confront them, and they run away, Foghorn suddenly has a big purple scarf round his neck.
Continuity mistake: When Scrooge tells Crachit to shut the door because he's letting the heat out, there is nothing in front of Scrooge on the desk, but in the next shot gold coins have appeared.
Continuity mistake: When Scrooge asks the ghost "Down there?", the door behind him is closed, but in the next shot the door is open.
Revealing mistake: When the ghost (Bugs Bunny) tells Scrooge that he is going to take him to "the man in the red suit", the ghost puts his arms up but the shadow does not.
Continuity mistake: When the ghost (Bugs Bunny) appears to Scrooge, he has his arms up and his eyes wide. But we see a close up of the ghost in the next shot, his arms are outward and his eyes are angry.
Continuity mistake: Before going to bed, Scrooge takes off his slippers and puts them by the side of his bed. But when he is disturbed by the singers, the slippers and the pillows he is resting his head on have disappeared.