Snake tales: Blanchett has signed on to play the python, Kaa, in the upcoming <em>Jungle Book</em> movie.

Snake tales: Blanchett has signed on to play the python, Kaa, in the upcoming Jungle Book movie. Photo: AFP

Cate Blanchett has joined the cast of the upcoming adventure tale Jungle Book: Origins.

Oscar-winner Blanchett and actor Christian Bale have both signed on to the project, rounding out the cast for the film.

The stars join British actor Benedict Cumberbatch, who will play villainous tiger Shere Khan in the adaptation of Rudyard Kipling's novel.

Blanchett will play python Kaa, while Bale will voice orphan Mowgli's panther friend Bagheera, according to The Hollywood Reporter.

Andy Serkis, who will make his directorial debut on the film, will step in as Baloo the bear and Lone Survivor's Rohan Chand will star as Mowgli.

Others actors to star in the highly anticipated film include Naomie Harris, Tom Hollander, Eddie Marsan and Peter Mullan.

This isn't the only Jungle Book film in the works. Jon Favreau will take charge of a rival Disney live-action/animation production, which features the voices of Idris Elba, Scarlett Johansson, Sir Ben Kingsley, Christopher Walken and Lupita Nyong'o.

AAP