Harry Potter and the Prisoner of Azkaban attacked by a big black dog, which Harry has seen several times before. The dog drags Ron through a tunnel under the Whomping Willow into the Shrieking Shack. Harry and Hermione follow, and there is a brief standoff when they find Ron with Sirius Black, who has transformed from the dog. Lupin enters, and they explain the situation to Harry and his friends: Lupin is a werewolf, which led to his friends James Potter, Sirius Black, and Peter Pettigrew becoming animagi. Lupin explains that Scabbers is Pettigrew in his animal form; he has been hiding from Black, whom he had
Harry Potter and the Prisoner of Azkaban (soundtrack) Harry Potter and the Prisoner of Azkaban (soundtrack) Harry Potter and the Prisoner of Azkaban: Original Motion Picture Soundtrack is the film score for the 2004 film of the same name, the third and final score in the series to be composed and conducted by John Williams. It introduced two major themes: "Window to the Past" and "Double Trouble", although neither were featured in the series's other films. Two other notable themes were used to represent the Time-Turner and Sirius Black's hunt for Harry. The soundtrack was performed at Abbey Road Studios in London. It was released on 25 May