This deluxe German/British production was originally released as simply F.P. 1. The story and characterizations take a back seat to the massive sets and state-of-art (for 1933) special effects. The floating aerodrome which provides the film's centerpiece is a truly impressive creation, far more so than the penny-dreadful espionage plotline involving plans to sabotage the mid-Atlantic airport. Among the scripters were future directors Curt Siodmak, Walter Reisch and Robert Stevenson, all of whom flourished in the dual Berlin/London market that would be broken up with the emergence of Hitler. Retitled F.P. 1 Doesn't Answer, the film was released in the U.S. by Hollywood's Fox Studios, which bestowed top billing upon American actor Leslie Fenton--over and above the more illustrious Conrad Veidt.