The director's surprising new biopic of America's outgoing president provides a searing look into the psyches of not one but two polarizing, complicated men: George W. Bush and Oliver Stone.

With a new four-hour epic about the life of Che Guevara, the director paints a controversial portrait of one of the 20th century's most notorious Marxist rabble-rousers that's too big-and too bloody-to fit on a T-shirt.