Superman/Batman: Apocalypse is a 2010 direct-to-video animated superhero film based on the Superman/Batman comic storyline "The Supergirl from Krypton" and is a sequel to Superman/Batman: Public Enemies. The art style is partly based on that of Michael Turner, who penciled the Superman/Batman comic book arc. The film is the ninth in the DC Universe Animated Original Movies line released by Warner Premiere and Warner Bros. Animation and the first sequel in the line. It was released on September 28, 2010. The film stars Andre Braugher, Kevin Conroy, Tim Daly and Summer Glau. Despite the title, the film focuses primarily on the introduction of Supergirl and her relationship with Superman. Batman plays a supporting role.