The original working title "Lady of the Night" was changed after the Hays Office objected. (The title was thought to be obscene.)
Originally, Jean Harlow and Clark Gable were set to star in this film but rejected the project. After rewrites, the project was remounted with Loretta Young and Ricardo Cortez.
After Tom gets Sam to the table at the club, he orders "a couple pints of Clicquot." He is most likely ordering a popular ginger ale at the time, and not the French champagne of the same name.
While leaving work, one stenographer said she was going to get a "finger wave." Finger waves were a hairstyle developed in the 1920s to add style to, and soften the hard appearance of, the bobbed hairstyles that became very popular during the flapper period. No heated irons were used on the hair, just a shape-retaining lotion made using karaya gum.