Christopher Bell and his brothers Mike and Mark grew up in the '80s desperate to emulate their he-man heroes Arnold Schwarzenegger and Hulk Hogan. So all three boys took up powerlifting. And just like Schwarzenegger and Hogan—who have since owned up to using steroids when in their prime—each Bell brother began juicing. Only Christopher stopped. He's the director of this provocative and engaging film, which examines the popularity of banned steroids and other dubious, though legal, athletic supplements among pro and amateur athletes. Bell deftly underscores the contradictions inherent in a system in which the obvious rewards for using, including boundless money and fame, seemingly continue to outweigh the putative risks.