Sam Rockwell loves to dance or at least movie makers like to see him move. Here are some clips of him dancing:
Iron Man 2 (2010)
He plays Justin Hammer, a bad rich kid who likes to play with expensive toys.
He plays a guy lost in space, in a sense.
The Hitchhikers Guide To The Galaxy (2005)
He is Zaphod, a nutter politician. The scene below is a deleted scene from the DVD of the movie, however.
Confessions of a dangerous mind (2002)
Rockwell plays Chuck Barris, a TV presenter and maybe-spy. This was actually lifted by YouTube from when the film was made.
Charlie's Angels (2000)
As Eric Knox, he enjoyed a fine dance moment.