“We tell ourselves stories in order to live,” Joan Didion wrote. She also wrote, with her husband, more than twenty screenplays in order to make money. The couple was hardly alone: from the early days of Hollywood, literary figures like Graham Greene, F. Scott Fitzgerald, Hemingway, Steinbeck, and Brecht took a swing at the pictures. More recent efforts have come from Don DeLillo, Cormac McCarthy, Margaret Atwood, Paul Auster, and...