The Harry Potter and the Deathly Hallows trailer is here. Break out the fizzing whizbees

Looking around the web today, you'd think half the world's bloggerati had overdosed on fizzing whizbees, so palpable is the hysteria over the new trailer for the penultimate part of the Harry Potter saga, Harry Potter and the Deathly Hallows: Part I. It feels a bit like we've woken up in a parallel universe where all five previous films in the series were cinematic masterpieces of the highest calibre, rather than ( with one notable exception ) tame and workmanlike offerings which rather fail to capture the flavour of JK Rowling's highly addictive books. Honestly, the idea of sitting through another two David Yates-directed instalments of this lamest of fantasy series fills me with the sort of dread that ought to be engendered by Ralph Fiennes's Voldemort, but never is, because despite the weird nostrils and soulless eyes, the character resembles a particularly timid secondary school supply teacher, all over-pronounced, phlegmy whisperings and damaged, thousand-yard stare. But a quick run through the main points of the trailer: Ron and Harry arguing – we've not seen that before. Bill Nighy (as Rufus Scrimgeour) filling Dumbledore's usual role with some vaguely portentous blitherings. More unscary Fiennes and his pet snake. Oh, and Hermione running around a bit. Exciting, eh?