I've got a news from some sources - Half-Blood Prince is going to be 153 minutes long [including end credits]. I still don't know whether it is true or not, but this announcement at AMC Theater seems pretty legit :-
While it is still a rumor, I consider it very true. Keep checking!
New Clip WB has just release a new clip of lovestruck Ron, just after eating Romilda Vane's chocolates. I know I'm very late in posting, but here's the clip only for you people -
New Featurette Another featurette of Half-Blood Prince has also released, giving us several new glimpses of Astronomy Tower, Dumbledore and Harry and much more...