Dangerous Moonlight (known as Suicide Squadron in the USA) is a 1941 British film, starring Anton Walbrook, best known for its musical score written by Richard Addinsell with orchestrations by Roy Douglas, which includes the Warsaw Concerto. Among the costumes, the gowns were designed by Cecil Beaton.
During the Nazi invasion of Poland, American reporter Carole Peters meets Polish airman Stefan Radetzky (Anton Walbrook), also a piano virtuoso. Stefan is among the last to escape Warsaw; months later, in New York, he and Carole meet again, and marry. But the thought of his going back to fight is not only personally terrifying to Carole, but seems a great waste of his musical talent.
Interestingly, Anton Walbrook was an accomplished amateur pianist, so his hands are seen playing in the film, however the music on the soundtrack is played by the professional pianist Louis Kentner.
Starring: Anton Walbrook, Sally Gray, Derrick De Marney, Cecil Parker, Percy Parsons