Harry Potter and the Half-Blood Prince. In theaters July 2009. bGet your online movietickets for FREE! @ and ENJOY this blockbuster NOW via online streaming!!bbr br As Harry Potter begins his 6th year at Hogwarts School of Witchcraft and Wizardry, he discovers an old book marked mysteriously "This book is the property of the Half-Blood Prince" and begins to learn more about Lord Voldemort's dark past.