Directed by Akira Kurosawa
Written by Akira Kurosawa and Ryûzô Kikushima
IMDB

A samurai enters a town run by two warring gangs and overrun by gamblers. The samurai decides to pit the groups against each other to drive his price as a bodygaurd higher. It almost works. He finds himself captured after helping a woman escape from one of the gangs, as she has gambled away by her husband.
Yojimbo is truly a masterpiece. Kurosawa is one of the best directors ever and some of the shots in this movie are amazing, if you're into that sort of thing. The story of this film is also excellent. There are some moments of humor and some pretty cool fights between the master samurai and somewhat large groups of people.
This was remade in America as the classic Western A Fistful of dollars. I have no problem remaking a movie into a different genre, but generally hate the idea of remaking a film, even if it's a foreign language film.

10/10