"I don't care if people think I'm an overactor," Jim Carrey once declared. "People who think that would call Van Gogh an overpainter."

[Carrey was rumored to have had a tooth deliberately chipped for his role in Dumb and Dumber. Though Carrey was arguably unmatched in his dedication, however, the tooth was in fact chipped when Carrey was a child (after a friend accidentally hit him in the face with a baseball bat).]