The Muppet Movie ambition of finding success in professional show business—while being pursued by Doc Hopper, an evil restaurateur with intentions of employing Kermit as a spokesperson for his frog legs business. In addition to the Muppet performers, the film stars Charles Durning and Austin Pendleton, and features cameo appearances by Dom DeLuise, James Coburn, Edgar Bergen, Steve Martin, and Mel Brooks, among others. Notable for its surreal humour, meta-references and prolific use of cameos, "The Muppet Movie" was released in the United Kingdom on May 31, 1979, and in the United States on June 22, 1979, and received critical praise; including two
The Muppet Movie and others sing the final verses of "The Rainbow Connection." Frank Oz appears in a cameo as a biker who beats up Fozzie Bear while Steve Whitmire appears as a man in the Bogen County Fair. Also, director Tim Burton is one of the puppeteers in the final shot of the film. John Landis is also in the final shot, performing Grover. Landis and Burton were both uncredited. The main obstacle the filmmakers were faced with during the development of "The Muppet Movie" was whether the Muppets would transition seamlessly from television to film. In 1978, director James Frawley, Jim