"I'm really looking forward to filming the cave and all the stuff in there with the lake and the Inferi. Me and [Michael] Gambon in a rowboat for a few days. It's gonna be amazing. I thought it was all gonna be largely visual effects, but they have built the cave. So it's gonna be very interesting to film."
To listen to an interview with the film's director, David Yates, CLICK HERE
Harry Potter and the Half-Blood Prince opens November 21st, 2008.