Akira Kurosawa's Yojimbo -the final scene where Toshiro Mifune, armed only with a kitchen knife, takes on an entire group of villains. One giant has a huge mallet, and the chief villain has come back from Tokyo with an early Smith & Wesson. It's right around 1866, and the entire movie has some of the greatest sword fighting ever captured on film. Sergio Leone remade the movie as A Fistful of Dollars, and Bruce Willis did a remake called Last Man Standing.
Of course, The Magnificent Seven was based on the Kurosawa film The Seven Samurai, and George Lucas said his inspiration for Star Wars was Kurosawa's The Hidden Fortress.
If you haven't seen any Kurosawa films, start with The Seven Samurai or Yojimbo, and you'll be hooked.