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 about the similarity between the Arthurian romances, where Camelot is a place of wonder and safety, and from the heroic knights must venture forth facing various perils, usually in an enchanted forest; and Hogwarts, likewise a wondrous safe place, where Harry Potter and friends must periodically venture forth from to the magical forest that surrounds Hogwarts. In the same way that knights in the Arthurian romances usually have a female helper, who is very intelligent and has a connection with nature, Harry has Hermione who plays a similar role. Like an Arthurian knight, Harry receives advice and encouragement from his