Walt Disney Pictures released under this brand. "Pirates of the Caribbean" is the studio's most successful franchise, with two of its sequels, released in and , earning over $1 billion in worldwide box office gross. The studio's predecessor (and the modern-day The Walt Disney Company's as a whole) was founded as the Disney Brothers Cartoon Studio, by filmmaker Walt Disney and his business partner and brother, Roy, in 1923. The creation of Mickey Mouse and subsequent short films and merchandise generated revenue for the studio which was renamed as The Walt Disney Studio at the Hyperion Studio in 1926. In 1929, it was
Criticism of The Walt Disney Company and head of the animation department. However Michael Eisner has been criticized for his management style. The book "DisneyWar" by James B. Stewart is an exposé of Eisner's 20-year tenure as Chairman and CEO at The Walt Disney Company. Stewart describes some of the following: In 2003, Roy resigned from his positions as Disney vice chairman and chairman of Walt Disney Feature Animation, accusing Eisner of micromanagement, flops with the ABC television network, timidity in the theme park business, turning The Walt Disney Company into a "rapacious, soul-less" company, and refusing to establish a clear succession plan, as well as