A vigorous narrative, and what else could it be considering the energy of Arthur Mitchell--who had no money for dancing lessons and got into the High School of Performing Arts on the basis of a soft-shoe routine, who studied modern dance and later classical ballet with Balanchine only to hear a woman in the audience exclaim ""look. . . they've got a nigger in the company"" on the night of his leading role debut. And then bringing young black dancers and black style into ballet through his Dance Theatre of Harlem. Briskly executed, and illustrated with warmth and humanity.