Not only is it a one-joke characterization, the joke is on the level of a below-average knock-knock joke.
* This filmography is not intended to be a comprehensive list of this artist’s work. Instead it reflects the films this person has been involved with that have been reviewed on this site.
He's a big, cheerful, bear-like man with the ability (unusual among film directors) to poke fun at his own work. "I stay with my films all the way," says Robert Altman. "Through the editing, through the post-production, all the way until they're in the theater and really failures."