Harry Potter and the Prisoner of Azkaban is the third film in the Harry Potter series, directed by Alfonso Cuarón. In this installment, Harry (Daniel Radcliffe) returns to Hogwarts for his third year, only to discover that a dangerous prisoner named Sirius Black has escaped from Azkaban, the wizarding prison. As Harry learns more about his past and the truth behind Sirius Black's escape, he also encounters new magical creatures and faces the Dementors, soul-sucking creatures guarding the school. Radcliffe's performance showcases Harry's growth as a character, as he navigates the challenges of adolescence and the dark forces threatening the wizarding world.