Blackmail 1947 is an American crime film noir directed by Lesley Selander. The drama features William Marshall, Adele Mara and Ricardo Cortez. The lead character is based on a pulp magazine hero Dan Turner, Hollywood Detective.
When released the New York Times gave the film a mixed review, writing, Evidently the writers andor Republic, the manufacturer, were convinced that some fast dialogue would enhance the rather confused goings on. But this yarn about a California playboy who becomes involved with shakedown artists and is aided by a brash, private investigator needed more than an occasional bright quip to keep things clear and moving.
Source: Wikipedia