History Film / HarryPotterAndTheOrderOfThePhoenix

** Harry's vision of Sirius tortured by Voldemort takes place in the courtyard after the twin's escape rather then during his History of Magic examination.

[[JustForFun/TheOneWith The one]] with the [[NoCelebritiesWereHarmed evil]] UsefulNotes/MargaretThatcher.

** Levicorpus was a nonverbal spell created by the Half-Blood Prince, and it wasn't [[AdaptationalEarlyAppearance introduced until the sixth book]]. In this film, Luna verbally casts it in the Ministry, with nothing suggesting it is not a regular, public domain spell like any other. (Although, to be fair, the way Lupin described it in the sixth book implies that this particular spell may have gone public at some point, as using its effects was a vogue prank around Hogwarts for a while.)

** Another portrait character, Phineus Nigellus, has a painting in both Grimmauld Place and Dumbledore's office and can travel between both at will.

** In the book, Bellatrix Lestrange is mentioned as having been very attractive ''before'' her stay in Azkaban, but not in the present. Here she's played by Creator/HelenaBonhamCarter, who personifies EvilIsSexy. She does at least have bad teeth and is [[EeriePaleSkinnedBrunette quite pale]], but she is still much more attractive than her book version.[[invoked]]

** Dolores Umbridge, in support of her AdaptationalVillainy. In the book, the Hogwarts staff use copious amounts of BotheringByTheBook, along with occasional outright defiance, to make her job more difficult, and her [[spoiler: tenure as Hogwarts's Headmistress]] practically impossible. Even the students get in on the act, with jokes, pranks, and other cleverness running Umbridge ragged despite her best efforts, which causes that she ultimately doesn't actually accomplish much in the book. In the film, her reign of terror at Hogwarts is basically unimpeded [[spoiler: until her final HumiliationConga.]] She also successfully catches the DA in the Room of Requirement, and learns of them through [[spoiler: tricking Cho into drinking veritaserum]] -- while in the book she relied on a snitch and even then didn't catch them.

--> '''Umbridge''': Harry! Tell them this is all a misunderstanding! Tell them I mean no harm!
--> '''Harry''': I'm sorry, professor, but [[IronicEcho I must not tell lies.]]

* {{Foreshadowing}}: A couple of times in the film, Ginny is shown getting jealous at Cho's attention to Harry -- foreshadowing their relationship in the next instalment.

Amusingly, this movie takes the longest book and [[CompressedAdaptation compresses]] it into the second-shortest movie (and it remains the shortest film based on a single book), although the original cut was nearly 3 hours long, which would have made it the longest film and second-longest film based on a single book.

* DoesNotLikeShoes: When Harry meets Luna feeding Thestrals in the forest, she is barefoot.
--> '''Harry''': Your feet, aren't they cold?
--> '''Luna''': A bit. Unfortunately, all my shoes have disappeared. I suspect Nargles are behind it.

* FourElementEnsemble: Occurs in the duel between Dumbledore and Voldemort during the climax. Voldemort conjures Fiendfyre (fire), then Dumbledore encases him in a sphere of water (water), Voldemort makes an air current and shockwave (air), and finally Dumbledore turns the various glass pieces flying at him and Harry into sand (earth).

* SpinningPaper: The movie reinvigorates this DeadHorseTrope, and it's awesome. The moving (and talking) pictures help and are entirely {{Justified}} because, well, [[AWizardDidIt they're magic]], and there's a practical use in that it keeps the movie from being bogged down by exposition and allows for easy scene transitions.
* StockFootage: The fiery serpent Voldemort conjures during the final duel uses the same animation the Basilisk did when it is writhing around.