"No matter how big they got, they started out small." Long before he was Muhammad Ali, 12-year-old Cassius Clay knew he would be a hero someday, no matter what anyone else had to say. In the nation's dark time of Jim Crow racism and violence, Cassius — with the support of his family, training from Officer Joe Martin, and his own hard work — fought his way onto the gold-medal stand and into the history books. Recommended ages 9+. By Idris Goodwin; directed by Malika Oyetimein.