This season has already seen Manon Lescaut appear in several different operatic guises across the UK, but it was Covent Garden’s new production of Puccini’s version (its first staging of it in three decades) that was the hottest ticket of all. The Latvian soprano Kristine Opolais and the superstar tenor Jonas Kaufmann were tackling the roles of the lovers, Manon and Des Grieux, for the first time.