This is the fifth in the series and is a very important movie. This one reviels lots of the secrets which will lead onto the sixth and seventh movies (not released yet) This is the longest book and it shows by being so far the longest movie.
It starts by being one of the hottest days in years and Harry and his cousin Dudley are in the Park when it suddenly starts to cloud over a it starts to rain heavly. They run off into a underground tunnel and they come across a creature that has been hassling Harry in the past, the Dementors. Harry is forced to use the Patronus charm which ends up getting Harry expelled. Which seems to make the Headmaster of Hogwarts, Proffesor Dumbledore, very unhappy.
Back at Hogwarts once again they need a new Defence against the dark arts teacher. This time it's a plump short lady from the Ministry, Proffesor Umbridge. She wants to take control because the Ministry are believing that Dumbledore is up to something he shouldn't be. This leads to Harry and his friends creating a lot of mischieve.
This is very important to watch if you plan to see all of the movies. It is a couple of hours long so you will have to prepare fo a long time without a toilet break.
I give it 8.5 out of 10
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