Snitch Seeker has a couple new quotes coming from Half-Blood Prince director David Yates and Dan Radcliffe. Yates reportedly had this to say about the opening of the film, courtesy The Sun:

We’re opening with a big attack. We’ll bring a major London landmark crashing down.

Back in March, there was filming going on at Millenium Bridge for a "bridge collapsing scene," which is likely what Yates refers to in this interview.

Radcliffe also talks in the article, comparing HBP to the film Trainspotting. We'll let you if a more complete interview comes online from the original source: Empire Magazine.