The untold story behind Helm's Deep, hundreds of years before the fateful war, telling the life and bloodsoaked times of its founder, Helm Hammerhand, the King of Rohan. Directed by Kenji Kamiyama from a screenplay by Phoebe Gittins and Arty Papageorgiou, based on the novel The Lord of the Rings by J. R. R. Tolkien. Produced by New Line Cinema and Warner Bros. Animation, the film is a prequel to Peter Jackson's The Lord of the Rings film trilogy. Starring Brian Cox, Gaia Wise, Luke Pasqualino, Miranda Otto, Laurence Ubong Williams, and Shaun Dooley