Monsters University is an upcoming 3D computer-animated comedy film produced by Pixar Animation Studios. The film is intended to be a prequel to the 2001 Pixar film Monsters, Inc. The film has been directed by Dan Scanlon. John Goodman, Billy Crystal, and Steve Buscemi will reprise their roles from the first film. The film is set for release on June 21, 2013, and will mark the first prequel Pixar has ever produced. Catch the teaser trailer of the film, here.