Directed by William Klein, this documentary chronicles the life of the legendary Muhammad Ali, who began his career as an Olympic gold medalist under his birth name of Cassius Clay. With a combination of brute physical power and a famously intimidating personal charisma, Ali not only became notorious in the boxing world, but was also given a large amount of press surrounding his political views and conversion to the Muslim faith. Klein, through archival footage and several interviews, captures the sports icon in his prime years as a boxer and pop cultural figure.
~ Tracie Cooper, All Movie Guide