Though HARRY POTTER AND THE PRISONER OF AZKABAN director Alfonso Cuaron still holds the crown for best film in the series, David Yates is making an attempt at a coup with HARRY POTTER AND THE… Though HARRY POTTER AND THE PRISONER OF AZKABAN director Alfonso Cuaron still holds the crown for best film in the series, David Yates is making an attempt at a coup with HARRY POTTER AND THE HALF-BLOOD PRINCE. Dark, gleefully funny, and beautifully shot, this adaptation of J.K. Rowling’s novel should please fans despite numerous changes to the 650-page source material. In this sixth film in the series, Harry’s (Daniel Radcliffe) inevitable confrontation with the dark wizard Voldemort grows closer, and Hogwarts headmaster Dumbledore (Michael Gambon) wants the young student to be prepared.