David Yates talks about HBP DVD and DH (including naked DanRad) 

"Besides detailing Half-Blood Prince, Yates and others also offered some surprising sneak peeks to the final two theatrical installments of the Harry Potter franchise, slated for 2010 and 2011 release. At certain points, Radcliffe will appear naked."
Keywords: david yates, talks about, hbp, dvd, and, dh, half-blood prince, deathly hallows, harry potter