From the producers of 'Bowling for Columbine', 'Fahrenheit 9/11' and 'Generation Iron' comes 'The Hurt Business' which examines the rise of mixed martial arts fighting through the eyes of today's top stars. 　　译文(2): 《科伦拜恩的保龄》、《华氏9/11》和《铁一代》的制片人推出了《受伤的商业》(The Hurt Business) ，通过当今顶级明星的眼睛审视了综合格斗的崛起。