Mickey's Steam Roller is a 1934 animated short film produced by Walt Disney Productions and released by United Artists. In the cartoon, Mickey Mouse is the driver of a steamroller which is hijacked by his two nephews. It was directed by David Hand and features the voices of Walt Disney as Mickey and Marcellite Garner as Minnie Mouse and Mickey's nephews. It was the 67th Mickey Mouse short film to be released, and the fifth of that year.Although this is the third animated appearance of Mickey's nephews, it is the first to show only two of them. The film is therefore considered the first identifiable and most significant animated appearance of Morty and Ferdie Fieldmouse, Mickey's twin nephews from the Mickey Mouse comic strip.The film was also called The Steamroller during production, and Mickey's Steamroller upon its re-release. Disney archivist Dave Smith has also stylized the title as Mickey's Steam-Roller.