If you loved Sword Art Online: Extra Edition, try NiNoKuni
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.
What they share
Theysit in Adventure / Animation / Fantasy territory. If that's the register that drew you to Sword Art Online: Extra Edition, the second film will land in a comparable space — through a different lens.
What NiNoKuni is
Here's a film that thinks parallel worlds are the solution, not the problem. Two high schoolers travel to a magical kingdom to save their friend's life, only to discover love makes things even more complicated. It's probably best enjoyed by people already invested in the lore.

