"Lux Radio Theater" broadcast a 60 minute radio adaptation of the movie onFebruary 9, 1948 with Robert Montgomery and Audrey Totter reprising their film roles.
Robert Montgomery's last MGM film. He had been under contract with the studio since 1929.
The actress Ellay Mort is credited in the role of Chrystal Kingsby. This person does not exist. The credit is a joke, as the name is phonetic for the French phrase "elle est morte" or "she is dead."
The entire movie plot unfolds from lead Robert Montgomery's point of view, thus creating a rarity in film: the principal character is only seen on-screen as a reflection in mirrors and windows, and as the narrator speaking directly to the audience.