Gintama: The Final

Three former students must stop their immortal mentor's evil alter-ego from destroying Earth. As the final battle approaches, allies and enemies unite to save their world, while one companion fights for survival.

Gintama: The Final is a 2021 fantasy animation movie, starring James Belcher, Greg Ayres, Clint Bickham. It holds an IMDb rating of 8.6/10 from 4,077 votes and runs 1h 44m.