If anyone has Harry Potter and the Half Blood Prince on Blu-ray there is a live community screening event taking place in 1 hour. I'm not too sure what's going to happen, but I know Daniel Radcliffe and director David Yates will be doing a commentary and answering questions.
You'll need to have
BD-Live and sign for an account here.
If your Blu-ray player cannot connect to the internet or you don't have BD-Live
this site will be live blogging the whole thing.