If you loved Pokémon: The First Movie, try Pokémon Heroes
A bridge between a film you've already seen and one most people haven't. Pokémon Heroes has roughly 4.1× fewer votes than Pokémon: The First Movie — 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 Kunihiko Yuyama, and they sit in Action / Adventure / Animation / Fantasy territory. If that's the register that drew you to Pokémon: The First Movie, the second film will land in a comparable space — through a different lens.
What Pokémon Heroes is
You visit Altomare, a Venetian labyrinth, and befriend two sibling Pokémon tied to the city's Soul Dew. But a notorious duo schemes to steal the Dew, endangering Latios and Latias. Yuyama's fluid backdrops here suggest Miyazaki, if only for a moment.

