Harry Potter and the Prisoner of Azkaban: Book vs. Movie Quiz There are several differences between the film version of Harry Potter and the Prisoner of Azkaban, and the book. Can you remember what happened in each? by Shmuel RossRead more about Harry Potter and try our Prisoner of Azkaban book quiz or our Prisoner of Azkaban: British vs. American Version. Question 1 (out of 10): In the film, who throws a rock through the window of Hagrid's cottage, hitting Harry on the back of the head? Draco Malfoy Buckbeak Sirius Black Hermione Granger FEN Learning is part of Sandbox Networks, a millennial learning company, reaching hundreds of millions of people across the globe.