Brave is a 2012 American 3D computer-animated fantasy-comedy film produced by Pixar and released by Walt Disney Pictures. It was directed by Mark Andrews and Brenda Chapman, and co-directed by Steve Purcell. The story is by Chapman, with the screenplay by Andrews, Purcell, Chapman and Irene Mecchi. Chapman drew inspiration from her relationship with her own daughter. Chapman became Pixar’s first female director of a feature-length film. The film was produced by Katherine Sarafian, with John Lasseter, Andrew Stanton and Pete Docter as executive producers. The film's voice cast features Kelly Macdonald, Julie Walters, Billy Connolly, Emma Thompson, Kevin McKidd, Craig Ferguson, and Robbie Coltrane. To create the most complex visuals possible, Pixar completely rewrote their animation system for the first time in 25 years. It is the first film to use the Dolby Atmos sound format.