If you're looking for free or alternative sources, here are a few third-party websites that offer the movie with English subtitles:
Stick to the community databases mentioned above. Rurouni Kenshin Movie 2012 English Subtitles Download
Unlike many adaptations that try to cram too much lore into a short runtime, the 2012 film focused on the origin story—specifically the Jin-e arc—while establishing the world of the Meiji Restoration. The film was praised for its gritty realism, stunning choreography by Kenji Tanigaki, and Satoh’s ability to capture the dichotomy of Himura Kenshin: a man trying to bury his violent past under a cheerful, goofy exterior. If you're looking for free or alternative sources,