Contrary to popular belief, Margo Channing is not based on
Tallulah Bankhead. The film was adapted from an original story "The Wisdom of Eve" by
Mary Orr (uncredited in this film), based on a real-life incident involving Austrian actress
Elisabeth Bergner during her run in the hit stage thriller "The Two Mrs. Carrolls" in 1943-44. The story about it being based on Bankhead persisted, however, and when Bankhead heard it, she reportedly told a live radio audience that the next time she saw
Bette Davis, she would "tear every hair out of her mustache".
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