In the David Stenn biography of Clara Bow that was published in 1988, actress Priscilla Bonner recalled that Elinor Glyn visited the set a couple of times, wearing several purple veils that, it was obvious, were meant to mask recent plastic surgery scars that has not yet healed. Bonner said she disliked Glyn right away, finding her to be pretentious and artificial. However, she said she loved working with Clara Bow.
Elinor Glyn gave many confusing and sometimes contradictory explanations for what "It" meant, but she always said that "It" did not mean "sex appeal" and anyone who said it did was vulgarizing her concept. Nonetheless, it was as a euphemism for "sex appeal" that "It" entered the language in the 1920s.
Though the film is billed as an adaptation of Elinor Glyn's novel "It," the two stories have nothing to do with each other except that both revolve around her concept of "It." In her preface to the novel, Glyn wrote, "This is not the story of the moving picture entitled 'It,' but a character study of the story which the people in the picture read and discuss."