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) Grint, and Emma Watson as the three leading characters: Harry Potter, Ron Weasley, and Hermione Granger. Four directors worked on the series: Chris Columbus, Alfonso Cuarón, Mike Newell, and David Yates. Michael Goldenberg wrote the screenplay for "Harry Potter and the Order of the Phoenix" (2007), while the remaining films had their screenplays written by Steve Kloves. Production took place over ten years, with the main story arc following Harry Potter's quest to overcome his arch-enemy Lord Voldemort. "Harry Potter and the Deathly Hallows", the seventh and final novel in the series, was adapted into two feature-length parts. "Part 1"