Trivia: At the end of the film when Scrooge is going round being nice to everyone, as he's on his way to the Cratchit's house, we see in the background a shop called "Micklewhite's". This is Michael Caine's real surname.
When Rizzo falls down the chimney and lands on the goose at Bob Cratchit's house, he burns his feet. When he is next to Gonzo, his feet are smoking. If you look closely, you can see the holes in the puppet's feet where the smoke comes out.