The film's loosely based on the life of Madeleine Smith, whose story was told more fully in David Lean's film Madeleine (1950).

Most of the characters' names from the play were changed for the film version.

Ms Lamarr was a woman truly ahead of her time. She was very inventive, and wished to be taken more for her intelligence than her looks. It was due to Ms Lamarr's creativity as the inventor of the technology which underlies almost all modern digital communication which she wanted to be remembered for (she was sadly, noted for this belatedly - after her passing).

The film is one of many which the original copyright holder failed to renew the film's copyright, which resulted in it falling into public domain.

This was the second film version of the play "Dishonored Lady," which opened on Broadway at the Empire Theatre on April 30, 1930, running for 127 performances. The first screen rendering was Letty Lynton (1932), a seminal work of the pre-Code era that has been sequestered since January 17, 1936, when a federal court ruled that MGM's script too closely resembled the play without having acquired the rights or given proper screen credit. The U.S. copyright of the play is due to expire in 2025.

Based on the play of the same name written by Margaret Ayer Barnes and Edward Sheldon, directed by Guthrie McClintic and starring Katharine Cornell.

Margaret Hamilton, the wicked witch of Oz, plays a nosy but sympathetic landlady.

The headpiece Hedy wears the first time she walks in the office is a 'snood'. It was very stylish in the mid- 40's.

As of the May 1947 release date, stars Hedy Lamarr (Madeleine) and John Loder (Felix) were married. They would divorce later that year in July. It was the third marriage for both. Lamarr would marry a total of 6 times and Loder 5.