With the release of the Harry Potter and the Order of the Phoenix DVD in the UK today comes a video showing a sneak peek into the production of the sixth movie Half-Blood Prince.
In this video we learn of the new Quidditch costumes as well as the design for the orphanage from Stuart Craig for the movie.
Thanks to UHP for the tip.
UPDATE: Sorry everyone, but the video has been removed - you will have to wait to get the DVD to watch the clip.
UPDATE II: For now you can still see the videos here. Thanks Henry.