Cannibal! The Musical is a stuent film directed by the future creator of South Park, Trey Parker, while studying at the University of Colorado at Boulder. A black comedy, it is loosely based on the true story of Alferd Packer and the sordid details of the trip from Utah to Colorado that left his five fellow travellers dead and partially eaten. Trey Parker stars as Alferd Packer, with Parker's frequent collaborators Matt Stone and Dian Bachar and others playing the supporting roles.