Brave (previously titled The Bear and the Bow) is a 2012 American computer-animated fantasy adventure film produced by Pixar Animation Studios and distributed by Walt Disney Pictures. It was written by Mark Andrews, Steve Purcell, Brenda Chapman, and Irene Mecchi, directed by Andrews and Chapman and co-directed by Purcell. The film's voice cast features Kelly Macdonald, Julie Walters, Billy Connolly, Emma Thompson, Kevin McKidd, Craig Ferguson, Robbie Coltrane, and John Ratzenberger. To make 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.