Harry Potter and the Prisoner of Azkaban is a 2004 fantasy film directed by Alfonso Cuarón from a screenplay by Steve Kloves. It is based on the 1999 novel Harry Potter and the Prisoner of Azkaban by J. K. Rowling. It is the sequel to Harry Potter and the Chamber of Secrets (2002) and the third instalment in the Harry Potter film series. The film stars Daniel Radcliffe as Harry Potter, alongside Rupert Grint and Emma Watson as Harry's best friends Ron Weasley and Hermione Granger, respectively. It chronicles Harry's third year at Hogwarts and his quest to uncover the truth about his past, including the connection recently escaped Azkaban prisoner Sirius Black has to Harry and his deceased parents.