Cameron Mackintosh’s name may not generate the immediate reverence of a Stephen Sondheim or a Neil Simon, but over the course of a long career, Mackintosh has generated hit after hit, whether on Broadway, in London’s West End, or anywhere else around the world. “Mackintosh remade the modern theatrical spectacle and transformed Broadway and the American road (not to mention old cinemas from Vienna to Tokyo) with his big four: Cats, Les Misérables, Miss Saigon and The Phantom of the Opera… But the high points came 15 years ago.” Does Mackintosh have any magic left?