Anecdotes

Katherine Grant (Claudette Colbert) dreams that Jim Ryan (Fred MacMurray) is a super-hero. In reality, MacMurray's image was used as the inspiration for the original Captain Marvel (aka "Shazam") in 1939.

Director Leisen tried to avoid using real mud in the sandhog sequences, relying instead on a mixture of sawdust and water which had to be put through cement mixers.

Colbert's character was reportedly based on photographer Margarett Bourke-White.

Fourth of seven movies that paired Claudette Colbert and Fred MacMurray.

Katherine Grant (Claudette Colbert) drives a 1942 Chrysler Convertible, the last model manufactured before the WWII shutdown of passenger vehicle production.