

To counter Dolores, Harry organises a group of rebellious students to form their own class, which they call ‘Dumbledore’s Army’. The group is eventually discovered, Dumbledore is arrested (he later escapes), and Harry and his friends are placed under school arrest. There is also a new teacher at Hogwarts, Dolores Umbridge (Imelda Staunton), who enforces new rules that severely restrict the freedom of the students. Harry struggles with recurring nightmares, an identity crisis and the general torments of a teenager coming of age, including his first kiss with Cho Chang (Katie Leung). With help from Albus Dumbledore (Michael Gambon), Harry wins his case at the Ministry of Magic and returns to his school, Hogwarts.

Here he is reunited with his godfather Sirius Black (Gary Oldman). He is taken to the secret headquarters of the Order of the Phoenix, a group of wizards opposed to Lord Voldemort (Ralph Fiennes). Harry uses magic to fight them off but later receives a letter from the Ministry of Magic notifying him that because he used magic outside school, he has been expelled. Harry Potter (Daniel Radcliffe) and his cousin Dudley are having a confrontation in the playground when they are attacked by two Dementors.
