Many words have already been written about whether Nicole Scherzinger, the American actress, ex-Pussycat Doll and X Factor judge, is the right choice to play Norma Desmond, the reclusive silent movie star who dreams of a comeback. Desmond has lost the limelight, whereas Scherzinger remains a global superstar. As it happens, it is just one of many inspired choices in Jamie Lloyd’s dazzling revival.