Is this a Walther PPK which I see before me? Almost! It’s former James Bond actor Daniel Craig, who’s starring as the Scottish king killer in “Macbeth” on Broadway. His uninvolving and ponderous production (it opened Thursday night at the Longacre Theatre, but barred critics from publishing reviews till midday Friday for reasons that will soon become obvious to you) is a real Blunderball.Two hours and 20 minutes, with one intermission. At the Longacre Theatre, 220 W 48th Street.