THE RETURN OF RUBEN BLADES follows the singer to Harvard, where he gets his master's degree in international law; to his old neighborhood in Panama; to California for a recording session with Linda Ronstadt, and to New York for a performance at S.O.B.'s. The music is a joy, as danceable as it is intelligent, and Mr. Blades makes every nuance count. Transferred to HD from the original 16mm film and lovingly restored.