He worked on the books for some musicals that were ultimately not made, "Love Me Love My Dog" and a musical with Michael Jackson. Stone wrote the book for the musical "Titanic" (1997–99) with music and lyrics by Maury Yeston which had a troublesome preproduction period but ultimately ran for 804 performances and swept the Tonys with five wins, including Stone who won a Tony for his book. "I love it when a show I'm working on is in trouble," Stone said around this time. "I'm an ardent puzzle doer, and I love solving the puzzle of it. I like the process. I don't like being in trouble in New York; nothing pleases the theatrical community more than knowing that a show is in trouble. And maybe had they succeeded--and the show was very nearly destroyed by it--it might have been discouraging. But they lost and we won." He had given up screenwriting by this time saying "I miss writing them, but I don't miss what happens to them after you write them. Stars are now the producers, because they are the motivating force to what gets done--half Jim Carrey's salary is the entire budget for 'Titanic'--and stars don't have the slightest clue of how to rewrite anything. It hurts the pictures terribly. Minutes after the script leaves my computer, it's best I be put to sleep." He said he hoped to write three or four more musicals. "'The Peter Principle'--this notion that as soon as you get good at something, you're promoted to something you're not good at--isn't going to work here," he said. "I'm good at writing book musicals and I'm going to keep writing them. I know I'm not going to sit down and write the Great American Play, but I hope to do the Great American Musical. Maybe I've already done it." Stone had one last Broadway hit with a 1999 revival of "Annie Get Your Gun", where Stone revised the book. It ran for 1045 performances. When "Charade" was remade as "The Truth About Charlie", Stone was credited on-screen as 'Peter Joshua', one of the names used by Cary Grant in the original film. For 18 years, Stone served as the member-elected president of the Dramatists Guild of America from 1981 to March 24, 1999. He resigned his presidency so a "new crew could take over." Stone died of pulmonary fibrosis on April 26, 2003 in Manhattan, New York.