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 and Walt Disney Productions before officially changing its name to The Walt Disney Company in 1986. The company established itself as a leader in the American animation industry before diversifying into live-action film production, television, and theme parks. Since the 1980s, Disney has created and acquired corporate divisions in order to market more mature content than is typically associated with its flagship family-oriented brands. The company is known for its film studio The Walt Disney Studios, which is one of the largest and best-known studios in American cinema. Disney's other main divisions are Walt Disney Parks, Experiences and Consumer Products,