When a catastrophic earthquake strikes Haiti in 2010, the world watches in horror, but actor Sean Penn chooses to act. "Citizen Penn," directed by Don Hardy, is a gripping documentary that chronicles Penn's unexpected and often controversial transformation from Hollywood star to a formidable force in humanitarian aid. The film follows his relentless, boots-on-the-ground efforts to establish and run a massive refugee camp, navigating a chaotic landscape of bureaucracy, media scrutiny, and immense human suffering. Featuring interviews with figures like journalist Anderson Cooper, the documentary paints a complex portrait of a man driven by a fierce, sometimes turbulent, determination to make a difference where governments fail. This is an unflinching look at the messy, real-world challenges of disaster relief and the singular, polarizing figure who dared to plunge into the heart of the crisis.