In 1977, the documentary "Pumping Iron" introduced moviegoers to the world of bodybuilding.
The film showcased the events leading up to the 1975 Mr. Olympia competition, focusing on then 5-time champ Arnold Schwarzenegger and future Hulk Lou Ferrigno.
A lot has changed since then, as Americans have become more interested in fitness and exercise. But what about bodybuilding?
"Generation Iron" is a new film from director Vlad Yudin. It follows a new generation of bodybuilders in their quest to be crowned Mr. Olympia. We're joined by the film's director Vlad Yudin.