Metalocalypse: Army of the Doomstar is a 2023 American direct-to-video adult animated musical fantasy film based on the Adult Swim animated series Metalocalypse. The film is written and directed by series co-creator Brendon Small and is a direct sequel to the 2013 special, Metalocalypse: The Doomstar Requiem. The film was released on August 22, 2023, alongside Dethklok's fifth studio album, Dethalbum IV. The film was dedicated to longtime series director, Jon Schnepp, who died in 2018 before production began. The film is the third and final of Adult Swim's line of straight-to-video movies after Aqua Teen Forever: Plantasm and The Venture Bros.: Radiant Is the Blood of the Baboon Heart, and was released by Warner Bros. Home Entertainment. The film picks up after the events of the Metalocalypse: The Doomstar Requiem special, with Dethklok tasked to write the "song of salvation" in order to save the planet from impending doom, and serves as the series finale to the Metalocalypse.