Harry Potter and the Prisoner of Azkaban opened in the UK on 31 May 2004.
In their third year at Hogwarts, Harry, Ron and Hermione meet escaped prisoner Sirius Black and learn to handle a Hippogriff – half-horse, half-eagle; repel shape-shifting Boggarts and master the art of Divination. Harry must also withstand soul-sucking Dementors, outsmart a dangerous werewolf and deal with the truth about Sirius and his relationship to Harry and his parents.