Pumping Iron (1977)

This documentary delves into the world of professional bodybuilding, focusing on the intense competition between the top contenders for the Mr. Olympia title. It highlights the rigorous training, discipline, and rivalry, particularly between a then-unknown Arnold Schwarzenegger and his main competitor, Lou Ferrigno. Offering an inside look at the dedication required in this sport, it's a classic in sports documentaries, captivating and inspiring for anyone interested in the extremes of physical fitness and competition.