Jacqueline Susann a radical departure from the works which made her famous. During the 1970s, Susann had spoken of future works. They included a novel about brothers who have their show business start in vaudeville, to be called "The Comedy Twins"; a novel about a poetess, "The Heroine"; a continuation of the story of Neely O'Hara's sons; and her autobiography. Jacqueline Susann enjoyed the fame which her books brought. "Confrontational, sassy, [and] entertaining," she appeared frequently on television, especially on talk shows. When asked what Ethel Merman thought of "Valley of the Dolls", Susann responded, "We didn't speak before the book came
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