Yojimbo
Seven Samurai
Samurai - the three part epic. I love the scene, in the tavern, where he catchs flys with his chopsticks, letting the young punks that are thinking about picking on him in the tavern, know what they would be in for.
And even though it may not technically count as a samurai movie - Rashoman.
As an honorable mention, I would add Shogun - the mini-series with Richard Chamberlin & Toshiro Mufune.
Kurosawa was quite pleased with the movie Magnificent Seven. He admired the works of Ford and Peckinpah.
and now I'm getting hungry for beef teriyaki & sashimi, . . . and a bit of sake.

LtngRydr