The Greatest (1977 film)

The Greatest is a 1977 film about the life of boxer Muhammad Ali, in which Ali plays himself. It was directed by Tom Gries and Monte Hellman. The film follows Alis life from the 1960 Olympics to his regaining the heavyweight crown from George Foreman in their famous Rumble in the Jungle fight in 1974. The footage of the boxing matches themselves are largely the actual footage from the time involved.

Rahman Ali, Howard Bingham, Harold Conrad, Don Dunphy, Lloyd Wells, Pat Patterson, and Gene Kilroy appear as themselves.There are many uncredited roles in the film including some major characters such as Ruby Sanderson his girlfriend, Belinda Board who became his wife and Herbert Mohammed son of Elijah Muhammad and his manager at one point. ........

Source: Wikipedia