If you loved Animal Crossing: The Movie, try Digimon Adventure 02: Revenge of Diaboromon
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.
You already loved

Animal Crossing: The Movie
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Digimon Adventure 02: Revenge of Diaboromon
What they share
Theysit in Animation / Family territory. If that's the register that drew you to Animal Crossing: The Movie, the second film will land in a comparable space — through a different lens.
What Digimon Adventure 02: Revenge of Diaboromon is
Four chosen kids battle a digital virus that keeps rebooting itself. Tai and Matt return to cyberspace with Omnimon while the younger crew faces infant Kuramon; their victory only accelerates Armageddemon’s arrival. The team learns regrouping beats brute force once again.