‘Sweetwater’ Review: An Intriguing But Sketchy Biopic of Nat Clifton, the Harlem Globetrotter Who Broke the Color Barrier of the NBA – Variety Written by Site Adminstrator on April 13, 2023. Posted in Blog. ‘Sweetwater’ Review: An Intriguing But Sketchy Biopic of Nat Clifton, the Harlem Globetrotter Who Broke the Color Barrier of the NBA Variety * This article was originally published here Previous Next