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 of the Lost Sheep", an even more major makeover took place: the character was drawn more realistically now, with white fur rather than black, shoes are removed, plus wearing suspenders instead of a shirt and shorts. This new Oswald model was adapted directly from a non-Oswald character in another Lantz cartoon: the Cinecolor "Fox and the Rabbit" (1935), released some two months earlier as the last of the early Cartune Classics series. The redesign was done by Manuel Moreno. The cartoons containing the new, white-furred Oswald seemed to be different from their predecessors in more than one way, as the