If you loved Pokémon the Movie: Diancie and the Cocoon of Destruction, try Pokémon the Movie: Hoopa and the Clash of Ages
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.

Pokémon the Movie: Diancie and the Cocoon of Destruction

Pokémon the Movie: Hoopa and the Clash of Ages
What they share
Both films are directed by Kunihiko Yuyama, and they both carry the cozy, playful, uplifting mood tags, and they sit in Action / Adventure / Animation / Family territory. If that's the register that drew you to Pokémon the Movie: Diancie and the Cocoon of Destruction, the second film will land in a comparable space — through a different lens.
What Pokémon the Movie: Hoopa and the Clash of Ages is
The film attempts to milk the Pokémon cash cow once more. Our heroes encounter Hoopa, a mythical Pokémon able to summon people and Pokémon through its magic rings. They must then deal with an ancient threat released from captivity. It probably delighted the target audience.