There are over 130 roles in this movie, all played by women. Phyllis Povah, Marjorie Main, Mary Cecil and Marjorie Wood originated their roles in the play, which opened on 7 September 1937 and had 666 performances at the Ethel Barrymore Theatre in New York. No doubles were used in the fight sequence where Rosalind Russell bites Paulette Goddard. Despite the permanent scar resulting from the bite, the actresses remained friends.
Though many people view Joan Crawford as the "bad girl" of the movie, Clare Boothe Luce, who wrote (as Clare Boothe) the play that the film was based on, sympathized most with Crystal Allen, Crawford's character.
In addition to its all-female cast, every animal that was used in the film (the many dogs and horses) was female as well. In addition, none of the works of art seen in the backgrounds were representative of the male form.
Sydney's, the beauty salon where the initial action takes place, was named after Sydney Guilaroff, the chief hairstylist at MGM from 1934 to the late 1970s. He was brought to MGM from New York at the request of Joan Crawford.
According to her autobiography, Rosalind Russell called in sick because Norma Shearer refused to share top billing. She stayed "sick" until Shearer finally relented.
Myrna Loy and Greta Garbo were the only top-tier female stars at MGM who did not star in this film, although Loy was considered for the role of Crystal Allen.
The lines Mary reads alone in bed are from "The Prophet" by Kahlil Gibran: "Then it is better for you that you cover your nakedness and pass out of love's threshing floor, Into the seasonless world where you shall laugh, but not all of your laughter, and weep, but not all of your tears," but MGM omitted the reference to "nakedness" to avoid offending the censors.
When Norma Shearer and Joan Crawford were called to shoot publicity stills, neither actress would enter the studio first. Instead, they remained in their limousines and circled the parking lot until director George Cukor summoned them and they instantly behaved like best friends.
The stage actress who originated the role of Sylvia Fowler (Rosalind Russell's role in the film) was Ilka Chase. She is probably best recognized by today's audiences as the Stepmother in the original Julie Andrews live TV musical production of Richard Rodgers and Oscar Hammerstein II's Cinderella, the kinescope of which was recently rediscovered and released on DVD.
The beauty salon and spa featured in the film's opening sequence was based on cosmetics mogul Elizabeth Arden's parlor in New York City. At the premiere of the film, Arden scoffed that the film's salon was an exact copy of hers.
The enormous square-cut ring Mary wears on her wedding finger at the film's start was the most expensive piece of jewelry in the film. Borrowed for filming, it was worth $175,000.