South Park (1997)

Season 2: Episode 9

A film festival moves to South Park, only to have a devastating effect on the sewer system. Mr. Hankey calls upon Kyle for help. The movie people interpret Kyle's pleading as a pitch and they quickly turn his story into a film starring Tom Hanks and a monkey they call "Mr. Hankey." Kyle is outraged that the filmmakers aren't hearing his pleas. Soon Chef's Salty Chocolate Balls energizes everyone.