Watch Powder My Back Full Movie Free Online 123Movies. Rex Hale, a reform mayor, closes the musical comedy "Powder My Back" because he feels that it is immoral. Indignant, Fritzi Foy, star of the comedy, determines to revenge herself on Hale. Gaining entrance to his home by pretending to be injured in an automobile accident, Fritzi has Claude, her press agent, masquerade as a doctor and advise that she should not be disturbed until she has completely recovered. Hale is enraged, but his son, Jack, falls in love with Fritzi though he is already engaged to Ruth Stevens, an attractive flapper. When she sees that her plan has caused unhappiness for an innocent person, Fritzi dissuades Jack, who returns to his old sweetheart; she ends up with the mayor.