If you loved The Cat Returns, try Fullmetal Alchemist the Movie: Conqueror of Shamballa
A bridge between a film you've already seen and one most people haven't. Fullmetal Alchemist the Movie: Conqueror of Shamballa has roughly 6.2× fewer votes than The Cat Returns — 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.

The Cat Returns

Fullmetal Alchemist the Movie: Conqueror of Shamballa
What they share
Theysit in Adventure / Animation / Drama territory. If that's the register that drew you to The Cat Returns, the second film will land in a comparable space — through a different lens.
What Fullmetal Alchemist the Movie: Conqueror of Shamballa is
You're stranded in 1920s Munich, your alchemy replaced with rocketry. But aiding a Romani girl pulls you into a web of world-ending conspiracies. Back home, Alphonse Elric pursues alchemy, seeking a reunion. Mizushima links Weimar Germany's anxieties to a coming war. The film lingers on how two brothers choose their destiny.