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Footage for the opening scene, which depicts a house in Stockholm, Sweden in the winter of 1943, is in black and white. No dialogue is heard in this scene, which is accompanied by the following voice-over narration: "This is Stockholm. 1943. A neutral island in a world of war. A diplomatic center of plot and counter-plot. Of enemies and cautious friends. A meeting took place at the suburban home of Olaf Lindquist. A meeting led by a strange figure who later came to be known as Victor Danemore. That was the name he chose. That was the name by which the world believed they knew him. Victor Danemore was a master of intrigue, in a world where the forces of intrigue continue long after the armies have left the field of battle." No other narration is heard in the film.
Opening title credits appear following the black-and-white sequence, and run over color footage of "Victor Danemore" in the garden at his villa. Sheldon Reynolds' credit appears as "Produced, Written & Directed by Sheldon Reynolds" in the viewed print. Cinematographer Bertil Palmgren's credit reads "Photographed in Eastman Color by Bertil Palmgren." No character names appeared in the credits, with the exception of the credit for actor John Padovano.
The motion picture Foreign Intrigue was loosely based on Sheldon Reynolds' long-running television series of the same title, which was shot on location in Europe, and ran on NBC for 156 episodes between 1951 and 1955. Reynolds produced, wrote and directed some episodes, and cinematographer Bertil Palmgren was also the director of photography for the series. Other production crew working on the television series who also are credited on the feature film are John Padovano and Tom Younger. A July 1, 1955 Hollywood Reporter production chart listed Steve Previn, who directed numerous television episodes, as the director of the feature film. However, Previn's name was replaced by Reynolds in the next production chart on July 8, 1955, and Previn's contribution to the final film has not been determined.
The television series had different characters than the motion picture, although the format was similar, featuring a lead male character in a variety of European settings. Like the television series, the motion picture was shot on location in Europe, in Marseilles, at the Villa des Palmiers near Nice, and Paris, France, Monaco, Vienna, Austria, and Stockholm, Sweden. Foreign Intrigue marked the motion picture debut of Eileen O'Casey, and the American feature debuts of Genevieve Page and Ingrid Tulean, who was later known as Ingrid Thulin. According to modern sources, Mitchum was paid $150,000 for his appearance in the film, which had a total production cost of $625,000.