The World Is Full of Married Men time, Jacqueline Susann's similarly themed novel "Valley of the Dolls" (1966) had already become a huge bestseller and a hit film, and Collins' novel was accepted. Within a week of its publication, "The World Is Full of Married Men" made the best-seller list. The book was a hit in both the United Kingdom and the U.S., but was banned in Australia. Collins' publishers at the time, W.H. Allen, told her that unless she took the "four-letter words" out, the book would be banned in Australia. Collins proceeded in taking the four-letter words out and it was still banned in Australia.
Jacqueline Susann made publishing history as the first writer to have three consecutive number one novels on the "Times" list. The book was filmed in 1975 by Guy Green as "Jacqueline Susann's Once Is Not Enough", with Kirk Douglas, Alexis Smith, Melina Mercouri, Brenda Vaccaro (in an Oscar-nominated performance), and Deborah Raffin as January. The film, executive-produced by Irving Mansfield, was not a critical favorite, but was a commercial success, grossing $15.7 million (the equivalent of $65.2 million in 2016).) Susann's final work was a novella, "Dolores" (Morrow), a "roman a clef" about Jacqueline Kennedy, originally written for the February 1974 issue