Pottering down the Thames

The teaser trailer for the next Harry Potter film was released yesterday: with some trepidation in fear of disappointment I waited for the download.

Any anxiety was quickly put to one side with scenes of broomsticks chasing down the Thames, past Canary Wharf and Parliament. Not sure whether it'll trump the opening scene from 'The World is not Enough' but it can't be a bad addition to the film.