Harry Potter and the Prisoner of Azkaban is the third film in the Harry Potter series. Daniel Radcliffe once again portrays Harry Potter, who faces a dangerous escaped prisoner named Sirius Black. As Harry learns more about his parents' past and the truth about Sirius Black, he also encounters magical creatures and experiences time travel. This movie introduces darker themes and a more mature tone, showcasing Daniel Radcliffe's growth as an actor and the evolution of the Harry Potter series.