Seven Samurai (1954)
A three and a half hour marathon by the master film maker. The story revolves around a small village in Japan in the 1600's. Due to the constant conflict with the bandits, the farmers recruit seven samurai to defend the village. The film describes, in great details, every aspect of the recruitment and the war. But unlike 'Once upon a time in America' which was almost as long, you don't really get the feeling of experiencing the drag in the movie; The story flows through time.