The Walt Disney Company and starred in several Disney produced films. Ub Iwerks refined Disney's initial design of Mickey Mouse. Disney's first sound film "Steamboat Willie", a cartoon starring Mickey, was released on November 18, 1928 through Pat Powers' distribution company. It was the first Mickey Mouse sound cartoon released, but the third to be created, behind "Plane Crazy" and "The Gallopin' Gaucho". "Steamboat Willie" was an immediate smash hit, and its initial success was attributed not just to Mickey's appeal as a character, but to the fact that it was the first cartoon to feature synchronized sound. Disney used Pat Powers' Cinephone system,
The Walt Disney Company with Disney as a production partner. Walt and Roy Disney formed Disney Brothers Cartoon Studio that same year. More animated films followed after Alice. In January 1926, with the completion of the Disney studio on Hyperion Street, the Disney Brothers Studio's name was changed to the Walt Disney Studio. After the demise of the "Alice" comedies, Disney developed an all-cartoon series starring his first original character, Oswald the Lucky Rabbit, which was distributed by Winkler Pictures through Universal Pictures. The distributor owned Oswald, so Disney only made a few hundred dollars. Disney completed 26 "Oswald" shorts before losing the contract