If you loved Batman: The Killing Joke, try All Star Superman
A bridge between a film you've already seen and one most people haven't. All Star Superman has roughly 3.5× 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 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 All Star Superman is
You're Superman, poisoned by Lex Luthor's solar plot. But as your powers evolve into overdrive, your days are numbered. The clock is ticking as you show Lois the Fortress and settle things with your old foe. Liu's direction gives weight to the Smallville mythos. What lingers is humility.

