Batman: The Killing Joke (2016, dir. Sam Liu)

An origin story for The Joker, filtered through his attempts to show anyone can become like him if they have a single day traumatic enough. Okay expansion of the iconic Moore/Bolland graphic novel. Doesn’t add much except running time; for completists only, perhaps, though those unfamiliar with the book may appreciate it more.

Batman Returns (1992, dir. Tim Burton)

Batman encounters Catwoman and The Penguin, who is being manipulated to become mayor of Gotham City. Darker, confident sequel, with a pervy streak a mile wide running right through it. Pushing the limits of weirdness for a tentpole release, Batman Returns is both a franchise and genre high point.