But some of Rudnick’s best work have gone unsigned. He .did an uncredited rewrite of the movie “The Addams Family” and is at work on a sequel. His longest-running hit is the Premiere magazine column, “If You Ask Me,” which he writes in the voice of Libby Gelman-Waxner, a quintessential Jewish mother who critiques movie stars’ personal lives more than their acting. “She’s America’s most irresponsible film critic,” he says. But his true love is still writing for the stage: “With plays you only have to fill the center of the page. Novels take a tremendous amount of typing.”