Injustice is a 2021 American adult animated superhero film based on the 2013 video game of the same name, developed by NetherRealm Studios and based on characters from DC Comics. Produced by Warner Bros. Animation, DC Entertainment, and distributed by Warner Bros. Home Entertainment, it is the 45th installment in the DC Universe Animated Original Movies line. The film is directed by Matt Peters from a story by Ernie Altbacker and stars Justin Hartley and Anson Mount as Superman and Batman, respectively. The film, set in a separate continuity from the main DC Universe, follows Superman’s descent into madness after being tricked by Joker into killing his pregnant wife Lois Lane and detonating a nuclear weapon that destroys Metropolis. As Superman transforms the Earth into a police state to enforce global peace, Batman forms an underground resistance to oppose Superman and his allies.

The film was announced in May 2021, with Altbacker writing the script. The film adapts elements from both the Injustice video game and its prequel comic book series (primarily the Year One arc), but tells an original narrative which diverges from the source materials.