Jon Favreau's all-star Jungle Book cast keeps growing - Bill Murray has signed on to give Baloo the bear a voice.

He joins Christopher Walken, Sir Ben Kingsley, Lupita Nyong'o, Scarlett Johansson, and Idris Elba in the live-action/animation project, based on Rudyard Kipling's stories.

Newcomer Neel Sethi will play the film's young hero Mowgli.

The movie is set to hit cinemas in October, 2015.