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 Mathews (1919–1999), she began to adapt into book form letters she had written about her beloved poodle, Josephine. Published by Bernard Geis Associates on November 14, 1963, "Every Night, Josephine!" sold 35,000 copies in hardcover, and by 1973 sold 1.7 million paperbacks. This affectionate account of Josephine's hijinks earned positive reviews and appeared briefly on "Time" magazine's best seller list, peaking at #8. In support of "Josephine!", Susann undertook her first book tour, on which she was accompanied by the subject herself; often she and Josephine wore matching outfits. Even after publishing her novels, Susann cited "Josephine!" as her favorite