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) light of its 20th anniversary, wrote that youth-targeted literature has since become "a go-to well of ideas for Hollywood," pointing to the successes of "The Twilight Saga" and "The Hunger Games". The series has spawned a vast volume of fan fiction, with nearly 600 thousand inspired stories catalogued. YouTube hosts many fan films, ranging from amateur productions to full-length films. Harry Potter (film series) Harry Potter is a British-American film series based on the "Harry Potter" novels by author J. K. Rowling. The series is distributed by Warner Bros. and consists of eight fantasy films, beginning with "Harry Potter and