Robin Williams and Brittany Murphy have joined the cast to voice the starring roles in Warner Bros./Village Roadshow Pictures' upcoming cartoon feature Happy Feet.
The film is an Antarctica-set animated comedy with musical and dance elements. Happy Feet involves a young penguin, Mumble (Elijah Wood), with an unusual gift who finds the courage to pursue his dream.
Williams will voice four characters in the movie, including the pivotal role of the film's narrator Noah the elder, as well as the voices of two penguins - Ramone and Lovelace - and that of an elephant seal.
Murphy voices Mumble's girlfriend.