Oswald the Lucky Rabbit Mouse cartoon to be filmed was "Plane Crazy" in the summer of 1928, but it was produced as a silent and held back from release. The first Mickey Mouse film with a synchronized soundtrack, "Steamboat Willie", reached the screen that fall and became a major hit, eclipsing Oswald. "Plane Crazy" was later given its own synchronized soundtrack and released on March 17, 1929. Mintz, meanwhile, opened his own studio consisting primarily of former Disney employees, where he continued to produce Oswald cartoons, among them the first Oswald with sound, "Hen Fruit" (1929). While things were going in Mintz's favor, animators
Oswald the Lucky Rabbit audience, Disney studied and scrutinized the shadow effects, cross-cutting and staging of action in films featuring Douglas Fairbanks and Lon Chaney. Walt Disney did not want for Oswald to simply be "a rabbit character animated and shown in the same light as the commonly known cat characters", as well as merely just a peg for gags. Instead, his stated intention was "to make Oswald peculiarly and typically OSWALD." In 1927, because of cost and technical restrictions, Disney and his chief animator Ub Iwerks decided to end their work on the Alice Comedies series in search of new creative opportunities. Coincidentally,