Andy Serkis has defended the casting of the upcoming animated film "The Lord of the Rings: The War of the Rohirrim," which features an all-white principal cast. Serkis, who is directing the film, stated that the casting decisions were made to be historically appropriate for the narrative.

"The Lord of the Rings: The War of the Rohirrim" is set to explore the story of Helm Hammerhand, a legendary king of Rohan, and his stand against the fortress of Helm's Deep. The new cast members include Anya Taylor-Joy, Kate Winslet, and Jamie Dornan.

Serkis emphasized that the creative team aimed for authenticity within the context of the story. "The reason we haven't strayed from that is because we're honoring the source material, and in many ways, the world of Middle-earth is a reflection of certain historical periods of European history," Serkis told HuffPost Entertainment.

He further explained that the intention was to maintain the integrity of Tolkien's world, which is largely inspired by Northern European mythology and history. The film aims to delve into a specific era and culture within that established fictional universe.

"The Lord of the Rings: The War of the Rohirrim" is an anime film directed by Kenji Kamiyama and 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, focusing on events that occurred centuries before Frodo Baggins' journey. Serkis, who played Gollum in Jackson's films, is directing this new installment. The story centers on the heroic saga of the legendary king of Rohan and the epic battle that shaped the history of Middle-earth.