Directed by David Yates.
In Harry's sixth year at Hogwarts School of Witchcraft and Wizardry, Lord Voldemort and his Death Eaters are increasing their terror upon the Wizarding and Muggle worlds. Albus Dumbledore persuades his old friend and colleague Horace Slughorn to return to Hogwarts as a professor as there is a vacancy to fill. However, there is a more important reason for Slughorn's return. While in a Potions lesson, Harry takes possession of a strangely annotated school textbook, inscribed 'This is the property of the Half-Blood Prince', which contains astonishing information. Meanwhile, Dumbledore and Harry secretly work together to discover the method on how to destroy Voldemort once and for all. As romance and hormones lurk within the castle's walls all year, Draco Malfoy struggles to carry out a deed presented to him by the Dark Lord.
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