Roadside Attractions has debuted the first trailer for Emperor, director Peter Webber's true-story drama that offers history buffs a new look at the American occupation of Japan following World War II. Tommy Lee Jones stars as General Douglas MacArthur, who becomes the interim ruler of Japan after Emperor Hirohito surrenders. Matthew Fox plays General Bonner Fellers, an expert in Japanese culture who MacArthur brings in to determine whether or not the Emperor must be punished for his war crimes. Take a look at the latest footage from this drama based on an incredible true story, also starring Eriko Hatsune.