I began the evening at Sadler’s Wells with Sir Matthew Bourne’s version of "Edward Scissorhands," and my friend returned the favor by taking me to a very late showing of this—apparently John Waters’ choice for a Christmas film. The shift from something beautiful to utterly absurd was striking. It centers on “Harry,” a man who has never accepted that there isn't really a Santa Claus. I suppose I’ve spoiled things if y…