Kinky Boots, Adelphi Theatre
If the shoe fits, they say, wear it. But in truth there's always been a bit of a size differential between Kinky Boots, the modest urban Brit-flick, and the Cyndi Lauper/Harvey Fierstein musical that it spawned, first on Broadway and now here. Lauper's score resides principally in the funk and spunk of cross-dressing catwalk glamour while the somewhat dowdy spirit of Northamptonshire - the vernacular of the piece - i…