Movie Trailers: Harry Potter and the Half-Blood Prince - Trailer 3

Dumbledore calls in his friend Professor Slughorn to help defend Hogwarts against Voldemort, while Harry and his friends come under attack by their own hormones. Based on the novel by J.K. Rowling.

Hulu | April 17, 2009

Tags:. .slughorn. .voldemort. .dumbledore. .hogwarts. .hormones