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 (film series) film series that followed "Harry Potter"s suit. Furthermore, the practice of splitting the finale of a film series into two back-to-back films began with the success of "Deathly Hallows", and it would soon be replicated by "" and "", "" and "", "" and "", and "" and its sequel "". The films are also widely credited with singlehandedly signalling the popularity of films based on children's and young adult literature in the 2000s and 2010s, correlating with the book series' own literary influence. Costance Grady and Aja Romano, commenting on the whole "Harry Potter" franchise's legacy for "Vox" in