Cannibal! The Musical
Starring Trey Parker, Matt Stone, Dian Bachar, Ian Hardin, Jon Hegel, Masao Maki, Robert Muratore, Toddy Walters, Jason McHugh, Stan Brakhage
It's a history and comedy movie, and has a rating of 6.9 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Switzerland.