Hell's Angels is one of the inspirations behind Martin Scorsese's highly acclaimed Howard Hughes biopic, The Aviator. Billionaire Howard Hughes produced and directed Hell's Angels, the most expensive film ever made during its time. Hughes spared no expense in capturing an exciting dogfight between RAF and German fighter planes, using 133 pilots in all. Hell's Angels is perhaps most notable for introducing Jean Harlow to the screen in her first major film role. Set during World War I, Hell's Angels is the story of three Oxford buddies: two brothers and the German. When all three are conscripted to fight on opposing sides of the war, each is torn between obedience to his country and that of his country and that of his conscience. Jean Harlow is the woman who comes between the three men in this lavish period adventure.