Jean Peters got the role of Polly Cutler after Anne Baxter withdrew. After her withdrawal, the film was reworked to highlight Marilyn Monroe.
Curiously, the trailer for this Technicolor production was in black-and-white.
Even though she had a starring role, Marilyn Monroe was still under contract to 20th Century-Fox as a stock actor at a fixed salary, so she actually made less money than her make-up man did.
Film debut of Arch Johnson.
Rose (Marilyn Monroe)'s walk across some cobblestones holds the record for the longest walk in cinema history - 116 feet of film.
The model car that George Loomis (Joseph Cotten) is making in the film is a 1907 Maxwell. This is a nod to co-star Don Wilson, who plays the boisterous businessman J.J. Kettering. Wilson was the longtime announcer on Jack Benny's radio show. On the show, Jack Benny's car was a 1907 Maxwell. It's sputtering, coughing, wheezing engine (a vocal sound effect provided by Mel Blanc) was a well-known recurring gag on the show.
This is the only Marilyn Monroe movie in which her character dies.