Plane Crazy is a 1928 American animated short film directed by Walt Disney and Ub Iwerks. The cartoon, released by the Walt Disney Studios, is the first finished project to feature appearances of Mickey Mouse and Minnie Mouse, and was originally a silent film. It was given a test screening to a theater audience and potential distributors on May 15, 1928. An executive from Metro-Goldwyn-Mayer saw the film, but the film failed to pick up a distributor. Later that year, Disney released Mickey's first sound cartoon, Steamboat Willie, which was an enormous success; Plane Crazy was officially released as a sound cartoon on March 17, 1929. It was the fourth Mickey film to be given a wide release after Steamboat Willie, The Gallopin' Gaucho and The Barn Dance (1929).