In this film, the Joker (Heath Ledger) causes Batman (Christian Bale) to question his own sense of justice and morality. As the film progresses, Batman becomes more and more ruthless in his pursuit of the Joker, and he eventually crosses a line that he cannot come back from.
* The Amazing Spider-Man 2 (2014)
In this film, Peter Parker (Andrew Garfield) struggles to balance his personal life with his responsibilities as Spider-Man. As the film progresses, Peter becomes increasingly frustrated and angry, and he eventually gives in to his dark side and becomes the villainous Venom.
* X-Men: Apocalypse (2016)
In this film, the mutant Apocalypse (Oscar Isaac) attempts to take over the world and reshape it in his own image. He recruits four powerful mutants to help him, including Magneto (Michael Fassbender) and Mystique (Jennifer Lawrence). As the film progresses, Magneto and Mystique become increasingly disillusioned with Apocalypse's plans, and they eventually turn against him and join forces with the X-Men to stop him.