Jon Favreau has cast Thor co-star Idris Elba in the role of the tiger Shere Khan in his live-action adaptation of The Jungle Book. He will most likely perform the role and provide the voice of the tiger through motion capture work.
The story follows a boy named Mowgli who is raised by animals in the Indian jungle, where he befriends a bear and panther and is hunted by a vicious tiger. Elba is going to be pretty awesome in this role, especially with his voice. The guy is perfect.
The script for the film is being written by Justin Marks (The Raven, 20,000 Leagues Under the Sea), and it's set to go into production next year. It will be interesting to see who else ends up being cast in the film.