A very simple documentary structured around an interview of Robert McNamara, former U.S. secretary of defense during the Vietnam War, is an amazing insight into Cold War politics and its consequences. McNamara is a polarizing figure. He's loathed by many. In this documentary he's rather open about his life and experience in office....maybe he has ulterior motive for doing so I can't tell. Nonetheless, it is a very watchable documentary and you shouldn't shy away from it. The original score by Philip Glass is sublime. Get an education, watch this film.