Happy potter has this movie called "Harry Potter and the Prisoner of Azkaban" right? Release Date: June 4, 2004 Rating: PG right? well here's a Synopsis:

It's Harry's third year at Hogwarts and he's having a bad time at the Dursleys. First, he inflated his Aunt Marge and saw a death omen. And a mass murderer is in Hogwarts searching for Harry. Harry will learn more about his parents in this upcoming movie. Is the mass murderer after Harry? Or someone else?