Harry Potter (film series) to be re-cast for the third instalment, "Harry Potter and the Prisoner of Azkaban". David Heyman and director Alfonso Cuarón chose Michael Gambon to portray the character of Dumbledore, which he did for all succeeding films. Notable recurring cast members include Helena Bonham Carter as Bellatrix Lestrange, Warwick Davis as Filius Flitwick, Ralph Fiennes as Lord Voldemort, Brendan Gleeson as Alastor Moody, Richard Griffiths as Vernon Dursley, Jason Isaacs as Lucius Malfoy, Gary Oldman as Sirius Black, Fiona Shaw as Petunia Dursley, Timothy Spall as Peter Pettigrew, David Thewlis as Remus Lupin, Emma Thompson as Sybill Trelawney, Mark Williams as
Harry Potter and the Prisoner of Azkaban (film) notable change in the film series' tone and directing, and is considered by many critics and fans to be one of the best "Harry Potter" films. Harry Potter has been spending another dissatisfying summer with The Dursleys. When Harry's Aunt Marge insults his parents, he loses his temper and silently wills her to bloat up and float away. Fed up, Harry then flees the Dursleys with his luggage. The Knight Bus delivers Harry to the Leaky Cauldron, where he is pardoned by Minister of Magic Cornelius Fudge for using magic outside of Hogwarts. After reuniting with his best friends Ron