If you're British you probably know that the UK's traditional Christmas theatre is Pantomime. It's a multi-million pound industry, most theatres which don't house long running shows will present one, most kids will have been taken to such a show and many grow up taking their own off-spring to a pantomime every Christmas too.
If you're not from the UK you'll be forgiven for finding the whole thing baffling. There's no mime involved, as foreigners often assume. Instead it's a staging of one of around 6 children's stories but presented using a host of conventions which have become traditional, the origins of which are lost back in the mists of time.