Super Size Me

Morgan Spurlock's 2004 self-experiment -- eating nothing but McDonald's for 30 days -- cost $65,000 to make and earned $22 million at the box office, triggering a global debate about fast food, corporate responsibility, and the obesity epidemic. McDonald's eliminated its super-size menu option within weeks of the film's Sundance premiere, though the company denied any connection. Few films have achieved so direct and measurable a corporate response.