PBS - Sumo: East and West (2003)

Documentary offering a rare opportunity to go inside the cloistered and secretive world of sumo, where the historical clash between East and West plays out in the story of the Western outsiders who have entered this quintessentially Japanese institution. Sumo is not only Japan's national sport, but also a centuries-old cultural treasure that is part of the Shinto religion. Since the 1970s however, the success of bigger, heavier Hawaiian wrestlers has marked a controversial change in the sport.

More info