Once Is Not Enough offered a multiple-choice "audience participation" review, in which the reader was given four choices (ludicrous, bad, terrible, horrendous) by which to evaluate the movie. Despite the reviews, the film was a commercial success, earning $15.7 million at the box office (equivalent to $65.2 million in 2017). Brenda Vaccaro, as Linda Riggs, received an Oscar nomination for her performance. Once Is Not Enough Once Is Not Enough is the third novel by Jacqueline Susann, following her huge best sellers "Valley of the Dolls" (1966) and "The Love Machine" (1969). With "Once Is Not Enough," Susann became the first writer in publishing
Jacqueline Susann that it was one of "mental and spiritual incest." After her death, film critic Andrew Sarris pointed out that "If there is any single key to the oeuvre of Jacqueline Susann it is to be found in an extended Electra complex." As with her previous novels, reviews were negative (a writer for "The New York Times" complained of the book's "nearly 500 steadily monotonous pages"), but sales were spectacular: the book spent 36 weeks on the "New York Times" Best Seller List, eight of which were at #1, and became the second highest-selling novel of 1973. Susann, with this book,