Harry Potter and the Half-Blood Prince (2009) is a Adventure, Fantasy film that follows as Lord Voldemort tightens his grip on both the Muggle and wizarding worlds, Hogwarts is no longer a safe haven. Harry suspects perils may even lie within the castle, but Dumbledore is more intent upon preparing him for the final battle fast approaching. Together they work to find the key to unlock Voldemorts defenses and to this end, Dumbledore recruits his old friend and colleague Horace Slughorn, whom he believes holds crucial information. Even as the decisive showdown looms, romance blossoms for Harry, Ron, Hermione and their classmates. Love is in the air, but danger lies ahead and Hogwarts may never be the same again. Currently, you can watch Harry Potter and the Half-Blood Prince on HBO Max, HBO Max Amazon Channel, Peacock Premium, YouTube TV. Streaming availability may vary by country and platform over time. It has a user rating of 7.7 out of 10 from 20,703 votes. Fans of adventure movies may also want to explore similar titles below.