A disillusioned American military officer learns the Samurai culture while being held captive in a Japanese village.
After centuries of relying on hired samurai for national defense, the Japanese monarchy has decided to do away with the warriors in favor of a more contemporary military. Tom Cruise stars as Nathan Algren, a veteran of the U.S. Civil War who is hired by the Emperor Meiji to train an army capable of wiping out the samurai. But when Algren is captured by the samurai and taught about their history and way of life, he finds himself conflicted over who he should be fighting alongside.

Nice action film. But it is in no way historically accurate.