According to the Twitter account of Warwick Davis (who played both Flitwick in Griphook), the final day of principle photography for Harry Potter and the Deathly Hallows takes place today - Saturday, June 12th, 2010. Davis tweeted the following:
The end of an Era - today is officially the last day of principal photography on ‘Harry Potter’ - ever. I feel honoured to be here as the director shouts cut for the very last time. Farewell Harry & Hogwarts, it’s been magic! …and goodbye Griphook!
So there you have it — filming is now complete! The first part of Harry Potter and the Deathly Hallows will hit theaters on November 19th 2010, and Harry Potter and the Deathly Hallows - Part 2 will be released on July 15th, 2011.