Justice League: Throne of Atlantis is the 2015 animated feature film based on DC Comics' Justice League.
The movie finds the the League responding to a threat from King Orm of Atlantis to attack the surface world. In the process they learn of Arthur Curry, the half-human, half-Atlantean who could unseat Orm from the throne. The film details the League's first encounter with Aquaman and his subsequent joining of the team.
The film stars Matt Lanter as Aquaman, Jason O'Mara as Batman, Jerry O'Connell as Superman, Rosario Dawson as Wonder Woman, Christopher Gorham as The Flash, Nathan Fillion as Green lantern and Shemar Moore as Cyborg.