Other mistake: The ink on the pad and the ink on the stamp that Fred marks the kids "nice" are wrong. If you look at it Fred doesn't hit all the colors in the pad. He only hits one color.
Fred Claus (2007)
1 other mistake
Directed by: David Dobkin
Starring: Elizabeth Banks, Paul Giamatti, Vince Vaughn, Miranda Richardson, John Michael Higgins
Revealing mistake: In the beginning when Nick gets a present from Fred you see that the background is fake.
Willie: Charlene, do you think it's possible we can make enough gifts to meet our quota?
Charlene: Baseball bats, lose four seconds, 55... Yeah, it is possible.
Willie: It is, but, Fred, that's not what the kids asked for.
Fred Claus: Yeah, but all that matters is that each of the kids get a toy. That they have something that they can open when they wake up in the morning. Most importantly, they all know there's somebody who's thinking about them.
Trivia: Siblings Anonymous features three real brothers of celebrities: Frank Stallone, Roger Clinton, and Stephen Baldwin.