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.
Revealing mistake: When Fred and Nick are fighting on the snowmobile in the background in one shot you can tell that it is painted and it's fake.
Continuity mistake: When Fred gets to the North Pole and the Security elves take him down. Fred comes up and the snow on his face change between shots.
Clyde: You're all fired, in the morning you'll all be on a bus back to Elfistan.
Trivia: Siblings Anonymous features three real brothers of celebrities: Frank Stallone, Roger Clinton, and Stephen Baldwin.