Warner Bros. Pictures Animation has announced an new project, and it comes from one of the most recognizable voices in modern indie animation. Vivienne Medrano, the creator of Hazbin Hotel and Helluva Boss, is officially making the jump to feature films with an original animated musical titled Prehistoria. The project was unveiled during Warner Bros. Pictures Animation’s presentation at the Annecy International Animation Film Festival, where the studio also shared the first image from the film.