Zootopia (titled Zootropolis in various regions) is a 2016 American computer-animated buddy cop action-comedy film produced by Walt Disney Animation Studios and released by Walt Disney Pictures. The 55th Disney animated feature film, it was directed by Byron Howard and Rich Moore, co-directed by Jared Bush (in his feature directorial debut), and produced by Clark Spencer, with a screenplay written by Bush and Phil Johnston, and a story by Howard, Moore, Bush, Johnston, Jim Reardon, Josie Trinidad, and Jennifer Lee. The film stars the voices of Ginnifer Goodwin, Jason Bateman, Idris Elba, Jenny Slate, Nate Torrence, Bonnie Hunt, Don Lake, Tommy Chong, J. K. Simmons, Octavia Spencer, Alan Tudyk, and Shakira. Taking place in the titular city where anthropomorphic mammals coexist, it tells a story of an unlikely partnership between a rabbit police officer and a red fox con artist as they uncover a criminal conspiracy involving the disappearance of predators. Zootopia premiered at the Brussels Animation Film Festival in Belgium on February 13, 2016, and went into general theatrical release in Disney Digital 3-D, RealD 3D, IMAX 3D, and 4DX formats in the United States on March 4. The film received generally positive reviews from critics, who praised its screenplay, animation, voice acting, subject matter, and Michael Giacchino's musical score. The film opened to record-breaking box offices in several countries, and earned a worldwide gross of over $1 billion, making it the fourth-highest-grossing film of 2016.