Harry Potter and the Prisoner of Azkaban

Aunt Marge comes to stay and insults Harry's mother. He gets angry, and she inflates into a balloon and flies away. An angry Harry packs his suitcase, leaves and sits down on the sidewalk by the park. He sees an evil black dog and falls back, he is picked up by a three-decker bus "Knight", and they are madly jumping around London to the Purple Cauldron. Harry talks to the Minister of Magic, who lets him go. Mr. Weasley informs Harry that he is being hunted by a prisoner named Sirius Black. On the train to Hogwarts, the trio enters the carriage, where a strange man in a raincoat is sitting. The train stops and a dementor walks in the door. The last thing Harry sees is a man jumping up, chasing away a dementor, and hears his mother's scream. Then he loses consciousness. He wakes up, and they continue on their way to Hogwarts. At Hogwarts, the portrait of a fat lady is torn up by Sirius Black, and everyone has to sleep in the Great Hall. Harry is not allowed to attend school in the village of Hogsmeade, so he tries to sneak in an invisibility cloak. Fred and George stop him and give him a Map of the Marauders. In Hogsmeade, Harry overhears that Sirius betrayed his parents to Voldemort and killed a man named Peter Pettigrew. At Hogwarts, he looks at the Marauders' map and sees that a figure named Peter Pettigrew is walking around the city, he is investigating, but Snape catches him. His new teacher comes to the rescue and covers for him.