Nottingham Cinderella 4**** Theatre Royal, Nottingham Runs: 2h 30m: one interval: till 5 January www.royalcentre-nottingham.co.uk A great show. Surely a box office smash. If the press-night audience response to this pantomime was a reliable pointer – and it surely was – Nottingham’s Theatre Royal has a box office smash on its hands. From start to finish of this Cinderella there isn’t a flat moment. There are lots of funny local references – Mansfield up the road, a regular target, takes …