2021 Injustice should have been a resounding success. The DC animated film was adapted from mortal combat The hit fighting games from developer NetherRealm Studios, set in a dystopian universe in which a tyrannical Superman turns Earth into a police state and Batman leads a resistance against him.
In the game, this leads to all sorts of weird alliances between heroes and villains and, given that it’s a fighting game, a lot of amazing battles. The animated film freely adapts it, drawing inspiration from both games and tie-in comics to remix the story. Unfortunately, that didn’t work, and r/DC_Cinematic fans are trying to figure out why.