Harry Potter and the Half-Blood Prince (Theatrical Trailer 3) Posted on April 16, 2009 by Krunk Young wizards Harry Potter, Ron Weasley and Hermione Granger are facing new challenges and dangers in the wake of Lord Voldemort’s return. (Source) Download: 480p, 720p, 1080p MP4 Encode: 1080p Find more trailers and clips on our homepage.