Plane Crazy is a 1928 American animated short film directed by Walt Disney and Ub Iwerks. The cartoon, released by the Walt Disney Studios, was the first appearance of Mickey Mouse and his girlfriend Minnie Mouse, and was originally a silent film. It was given a test screening to a theater audience on May 15, 1928, and an executive from Metro-Goldwyn-Mayer saw the film, but 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).