Idris Elba has got some fierce competition as he prepares to voice tiger Shere Khan in one of two new movie adaptation of The Jungle Book - fellow Brit Benedict Cumberbatch will play the big bad cat in the other.

The Sherlock star has just signed on for Warner Bros.' adaptation of Rudyard Kipling's beloved adventure tale, which Lord of the Rings star Andy Serkis will direct, using the latest motion capture technology.

Jon Favreau will take charge of the rival Disney live-action/animation project production, which features the voices of Elba, Scarlett Johansson, Sir Ben Kingsley, Christopher Walken and Lupita Nyong'o.

The Disney film is expected to hit cinemas first, in October, 2015.