Y Tu Mamá También star Diego Luna makes his directorial debut with this documentary tracing the life and career of Mexican boxer Julio César Chávez. From his very first bouts to his unforgettable matches against such formidable opponents as Oscar De La Hoya and Kostya Tszyu, Luna follows Chavez as he prepares for retirement and begins training son Julio César Chávez, Jr. to carry on the fighting family tradition. ~ Jason Buchanan, All Movie Guide