Justice League: War is the 2014 animated feature film adapting the DC Comics storyline Justice League: Origin by Geoff Johns and Jim Lee.
The films finds the heroes of the DC Universe unfamiliar with one another as they, individually encounter Parademons and Mother Boxes, invaders and technology (respectively) from Apokolips. The heroes must band together and form the Justice League in order to stop Darkseid from destroying the Earth.
The film stars Alan Tudyk as Superman, Jason O'Mara as Batman, Michell Monaghan as Wonder Woman, Justin Kirk as Green Lantern, Christopher Gorham as The Flash and Shemar Moore as Cyborg. Justice League: War was directed by Jay Olivia from a script by Heath Corson.