If you loved Dragon Ball Z: Fusion Reborn, try Saint Seiya: Legend of Crimson Youth
A bridge between a film you've already seen and one most people haven't. Saint Seiya: Legend of Crimson Youth has roughly 3.9× fewer votes than Dragon Ball Z: Fusion Reborn — 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 Shigeyasu Yamauchi, and they both carry the foreign gem mood tag, and they sit in Action / Animation territory. If that's the register that drew you to Dragon Ball Z: Fusion Reborn, the second film will land in a comparable space — through a different lens.
What Saint Seiya: Legend of Crimson Youth is
You train under a dying master when a god resurrects thirsting for annihilation. Your four comrades stand ready at your side yet Athena walks away. This is the war that tests whether saints born from earth can outlast divine wrath. Yamauchi’s 80s anime frames martial ardor against celestial indifference leaving only clenched fists in the void.

