Watch them film Harry Potter and the half-blood prince!
Here are interviews with the cast!
Emma Watson:
Rupert Grint:
Daniel Radcliffe:
http://www.youtube.com/watch?v=XT6FJv7aMFA
http://www.youtube.com/watch?v=pmVcWKTAmO8
http://www.youtube.com/watch?v=Z0HQaIVuwBk
