If you loved Batman: The Killing Joke, try Batman: Soul of the Dragon
A bridge between a film you've already seen and one most people haven't. Batman: Soul of the Dragon has roughly 5.2× fewer votes than Batman: The Killing Joke — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Sam Liu, and they sit in Action / Animation / Crime territory. If that's the register that drew you to Batman: The Killing Joke, the second film will land in a comparable space — through a different lens.
What Batman: Soul of the Dragon is
You study martial arts under a mysterious sensei. But a relic threatens to open a doorway to a demonic realm. Together with old allies, you must fight to save the world. Liu's direction takes cues from 1970s martial arts cinema. The film leaves one wondering if the soul can ever truly be pure.

