Democracy

Media is growing in the UK faster than ever, thanks mainly to the tax break companies receive if their product is British-enough. Sounds ridiculous at first, however the idea isn't a bad one. 

If a whole movie is set in the hills of Cumbria, then Cumbria receives advertisements which snowballs into the UK getting an advertisement. Similarly if an actor/actress is British and they perform well then once again the UK gets some credit.

Overall the idea is to tempt more companies, gaming, or theatre to come to the UK. They pay less and the UK is credited, easy.