Aunt Marge's scenes are much shorter than in the book but the effect of Aunt Marge bouncing off the conservatory roof is very funny, especially since Dudley is behaving typically with his eyes still glued firmly to the television set! Even the sight of his aunt floating away isn't enough entertainment for him!

The Knight Bus scene is fantastic. The bus is exactly as imagined and the stand-offish attitude and boredness of Stan Shunpike is brilliant. The shrunken head is slightly annoying however, and doesn't really add any value to the scene.

Cornelius Fudge isn't really convincing as Minister of Magic, but the biting book scene is amusing. Mr Weasley fails to convince Harry that he is in serious danger from Sirius Black in my opinion. It's slightly light-hearted and OTT with his tone in trying to convince Harry he's in grave danger.

The effect of the Dementors freezing the train and the image of them portays them marvellously. They manage to capture the darkness and depression associated with them, but the follow-up of their effect is poor and unconvincing. Lupin doesn't seem to fit in with his characteristics either. Michael Gambon was able to take over the role of Albus Dumbeldore after the sad death of Richard Harris and does this fine. Dawn French as The Fat Lady is another OTT and actual pointless addition to the film, when other key parts have been missed out. Professor Trelawney is also unconvincing.

The change of the Hogwarts locations doesn't remain consistent with the previous films and is very noticable. Buckbeak flying around the school is also slightly too dramatic with the scenery below, but Buckbeak himself is great and captures the essense of a Hippogriff. Tom Felton is great once more as Malfoy and his reaction to Harry's success with Buckbeak.

The Professor Snape-Boggart is very amusing. The Shrieking Shack scene nicely sets up the future relationship between Ron and Hermione and the unseen attack from Harry once more demonstrates Malfoy's talent, and once again when Hermione hits him.

The scene at the Shrieking Shack although it misses out key details and has been changed, does still manage to convey the essential facts, and show how Buckbeak and Sirius manage to escape.

Overall the film is fine and generally enjoyable, although it doesn't live up to the book (PoA is my favourite book, so ...). It gets 7.5/10.