If you loved LUPIN THE IIIRD: The Movie - The Immortal Bloodline, try LUPIN THE IIIRD: Zenigata and the Two Lupins
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.

LUPIN THE IIIRD: The Movie - The Immortal Bloodline

LUPIN THE IIIRD: Zenigata and the Two Lupins
What they share
Both films are directed by Takeshi Koike, and they both carry the foreign gem, surreal mood tags, and they sit in Action / Animation / Crime territory. If that's the register that drew you to LUPIN THE IIIRD: The Movie - The Immortal Bloodline, the second film will land in a comparable space — through a different lens.
What LUPIN THE IIIRD: Zenigata and the Two Lupins is
You hunt Lupin, a phantom tied to a deadly bombing. But Lupin seems as surprised as you are by the carnage. Another Lupin is out there. Director Koike returns to this cel-shaded world to ask how much a name matters when everyone's a criminal. What remains when the mask comes off?