Watford has never struck me as a particularly spellbinding place, but it turns out that the Hertfordshire town, around 15 miles north of central London, is a gateway to a magical world – Warner Bros. Studio Tour London, The Making of Harry Potter, which lies on its outskirts.
I say magical not just because you may see your money disappear before your eyes thanks to the temptations of the incredible gift shop and the special effects photos and videos you