Muhammad Ali was born Cassius Clay in racially segregated Louisville, Kentucky, the son of a sign painter and a housekeeper. He went on to become a heavyweight boxer with a dazzling mix of power and speed, a warrior for racial pride, a comedian, a preacher, a poet, a draft resister, an actor, and a lover. Millions hated him when he changed his religion, changed his name, and refused to fight in the Vietnam War. He fought his way back, winning hearts, but at great cost. Jonathan Eig, hailed by Ken Burns as one of America’s master storytellers, sheds important new light on Ali’s politics, religion, personal life, and neurological condition through unprecedented access to all the key people in Ali’s life, more than 500 interviews and thousands of pages of previously unreleased FBI and Justice Department files and audiotaped interviews from the 1960s. is a story about America, about race, about a brutal sport, and about a courageous man who shook up the world.