Os Quatro Cavaleiros do Apocalipse

An extended family split up in France and Germany find themselves on opposing sides of the battlefield during World War I.

Often regarded as one of the first true anti-war films, it had a huge cultural impact and became the top-grossing film of 1921, beating out Charlie Chaplin's "The Kid". The film turned then-little-known actor Rudolph Valentino into a superstar and associated him with the image of the Latin Lover. The film also inspired a tango craze and such fashion fads as gaucho pants. The film was masterminded by June Mathis, who, with its success, became one of the most powerful women in Hollywood at the time.

Despite this -- the sales, the Valentino connection, and more... this is a little-known film and one that is rarely seen. Even being preserved by the Library of Congress (which is how it got on my to-see list) has not really raised its stature much. And yet, it is a minor silent epic that could be seen as the equal of anything DeMille or Griffith put out.