Muhammad Ali is the link for narrating the personal and sporting life of him and of other great boxers of his time. Much more than a biographical documentary, this is a doc about political and sociological history of the noble art, centered in the years when Cassius Clay/Ali shined. By watching this film you understand why there are so many movies about boxing: boxers are very often underdogs with amazing life stories. What makes someone becomes a boxer, what kinds of life they have before, what happens afterwards... Spectator gets moved not only by the tragic post-retirement of one of the greatest sportsmen that ever existed, but also by the difficulties, breakthroughs, successes, dreams an falls of other fighters who have been strong opponents of Ali, having defeated him, knocked him down or just having a heavier punch than he was accustomed to. By thinking about those stories you can imagine many more movies that would have been amazing but that have never been shot. Ron Lyle, Ken Norton, Earnie Shavers, Ernie Terrell, George Chuvallo, Henry Cooper... Perhaps someday.