Batman: The Dark Knight (2008)

Set within a year after the events of Batman Begins, Batman, Lieutenant James Gordon, and new district attorney Harvey Dent successfully begin to round up the criminals that plague Gotham City until a mysterious and sadistic criminal mastermind known only as the Joker appears in Gotham, creating a new wave of chaos. The Joker thrusts Gotham into anarchy and forces Batman closer to crossing the fine line between hero and vigilante.