Trivia

The plot was inspired by Sturges's mother, a female strong-willed entrepreneur.
--Source: Three more screenplays by Preston Sturges, Page 17

Preston Sturges: "I had my fingers crossed when Henry Fonda went over the sofa. I held my left ear when he tore down the curtains and I held everything when the roast beef hit him. But it paid off. Audiences, including the critics, surrendered to the fun, and the picture made a lot of money for the studio."
--Source: Preston Sturges by Preston Sturges, Page 194

Paramount remade The Lady Eve as The Birds and the Bees in 1956. The film starred television comic George Gobel, musical star Mitzi Gaynor and David Niven. Stanwyck refused an invitation to attend the premiere. The film was not a success with critics or the movie-going public.

The 19-page story by Monckton Hoffe which The Lady Eve was loosely based on was called Two Bad Hats, which was also the working title for the film.

The censors at the Hays Office initially rejected the script that was submitted to them, because of "the definite suggestion of a sex affair between your two leads" which lacked "compensating moral values." A later, revised, script was approved.