If you loved Steins;Gate: The Movie - Load Region of Déjà Vu, try Orange: Future
A bridge between a film you've already seen and one most people haven't. Orange: Future has roughly 4.0× fewer votes than Steins;Gate: The Movie - Load Region of Déjà Vu — 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 Hiroshi Hamasaki, and they both carry the foreign gem, tender mood tags, and they sit in Animation / Drama / Science Fiction territory. If that's the register that drew you to Steins;Gate: The Movie - Load Region of Déjà Vu, the second film will land in a comparable space — through a different lens.
What Orange: Future is
Old friends reunite to gaze at cherry blossoms. They visit their late friend Kakeru's home to learn the truth about his death. It's a sentimental trip down memory lane.

