Paul Robeson performs in "Sanders of the River" (1935). Mr. Robeson had a strong presence on screen. Starring Paul Robeson, Nina Mae McKinney, Leslie Banks, Tony Wane In N'Gombi, Nigeria, British District Commissioner R.G. Sanders (Leslie Banks) oversees various tribes. Discovering that a Liberian native, Bosambo (Paul Robeson), has been acting as chief without approval, Sanders nevertheless is impressed by Bosambo's skills and allows him to remain chief. With Sanders' aid, Bosambo holds off an