If you loved Hello World, try Sword Art Online the Movie: Ordinal Scale
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
Both films are directed by Tomohiko Ito, and they sit in Animation / Science Fiction territory. If that's the register that drew you to Hello World, the second film will land in a comparable space — through a different lens.
What Sword Art Online the Movie: Ordinal Scale is
You wield a blade in a new augmented reality game with Asuna. But dangers from Sword Art Online reappear in this fresh world. Ito’s camera makes no distinction between real and virtual tears.

