Sky Movies 'Half-Blood Princ'e Special

*CAUTION: SPOILERS*
Alex Zane goes behind the scenes of "Harry Potter and the Half-Blood Prince" in this TV special for Sky Movies. In this excellent video, he gets to interview cast and crew alike, and also wanders through different sets at Leavesden Studios, including Diagon Alley and the Gryffindor Boys' Dormitory. Contains a brand new clip from the film set at Spinner's End.