sentences:  Because he himself was sensitive to the issue of racial representation in the film, Preminger had no objections when Zanuck urged him to submit the script to Walter Francis White, executive secretary of the NAACP, who had no objection to it.Preminger began to assemble his cast.Harry Belafonte, a folk singer who recently had introduced Calypso music to a mainstream audience, had only one film to his credit, but he had just won the Tony Award and Theatre World Award for his performance in "John Murray Anderson's Almanac", and Preminger cast him as Joe.