What was the first feature-length musical the duo starred in?
The Book of Mormon
South Park: Bigger, Longer & Uncut
Cannibal! The Musical
Team America: World Police
Answer
Cannibal! The Musical is a 1993 American independent musical film written and directed by Trey Parker and Matt Stone. The film stars Parker and Stone, with Dave Foley, Jennifer Tilly, and Simon Pegg in supporting roles.
Mastering Matt Stone: Exploring the Talents of an Iconic American Actor, Animator, and Filmmaker