- The Dementors are more skeletal than in PoA
- The Dursleys are in the film for 10-15 mins, then Moody etc come to take Harry to Grimmauld.
- The twins do bust out of Hogwarts like in the book, but they don't cast the swamp spell. "It is one of the more memorable scenes in the movie. Incredible effects."
- Very little foreshadowing between Harry and Ginny - they share a look that book fans will recognize and appreciate.
- Dumbledore's escape was spectacular.
- The Black family tapestry is "lush and detailed" as Sirius explains it to Harry.
- The film centers on Harry and the DA on the whole.
- There aren't any "invented" scenes; it's all from the book.
- Dumbledore was "calm and inventive" during the Voldy battle, which was "great"; no curse whirled Herimone's way.
- On the cinematogrpaphy: "This film feels, cinematically, like a film from the 50's filmed in Cinema-Scope. A wide aspect ratio with tons of shots that have a lot of movement in them. The kind of thing that will be killed in P/S format on television. The scenes with the DA are all wide with few closeups so we can see everyone practicing. The walls are mirrored so it gives you the sense of a dance studio/martial arts training center. It makes for a great visual.
- Ron, Hermione, Luna and Neville are held by Death Eaters during the last battle.
- There is no St. Mungo's
- Sirius has a lot more screen time.
- The DA lessons "begin awkwardly," and are among the most memorable. One particular duel is going to "blow up the forums" (relating to shipping - as Emma Watson has said in the past that at one point she pins Ron against a wall, this is probably that duel).
- Mr. Weasley's attack is in the film.
- Bellatrix is "mean, no doubt, and lets Neville know he's #1 on her list." She doesn't interact with Harry much.
- No Quidditch, and no kiss from Hermione to Ron.
- The twins do sell their wares in the film.
- No Quibbler article, but Luna is reading it in the carriage pulled by the Thestral.
- Moody's broom is supposed to be fun/funny
- The Room of Requirement is discovered by Neville and explained by Hermione. No boggart. Ron never makes the film!Ron scared-face.
- Aunt Petunia's Howler is not in the film.
- The possession of Harry by Voldemort is in the film and supposedly very well acted.
- Lily does not stick up for Snape in the Worst Memory part.
- The "Snape's Worst Memory" scene is "much easier to bear" than in the books; it's not as humiliating in the film. It's 3 or 4 minutes long. No underpants, just hanging in the tree.
- No lion hat on Luna.
- Kreacher is featured and is a big jerk (lol). He's a sinister Dobby.
- Draco isn't in the film much, though he does well when he's there.
- Prefects are not appointed as in the book; the appointments are not mentioned.
- Aberforth is in the film for a quick second as is one of his goats.
- Flitwick is still the "new" Flitwick from movie four.
- No Phineas (though his line is in the Dumbledore escape scene)
- Ginny's patronus seems to be a phoenix; Luna's is a hare. (NOTE: The film people would never make this up; there's a 99% chance this is canon approved by Jo.)
- No Mundungus
- Black family tapestry is enormous
- Cho is the Snitch, but she was Veritaserumed into it. Though Harry gives her a very cold look.
- Cho does not get "sneak" on her face.
- Harry ignores Cho for the whole film after she is the sneak; the whole DA gets detention.
- Harry writes “I must not tell lies” on his hand, and it’s a “brutal scene. The entire D.A. is subjected to this later in the movie, except Cho.
- The worst memory scene is NOT a Pensive scene; it's Harry practicing Occlumency and getting into Snape's mind. Snape stops the lessons because of things.
- The statues don't protect Harry, he is just pinned to the wall.
- DD helps Harry being possessed by reminding him of the differences between him and Voldemort.
- No brain room or locked room, but the Prophecy Room and Veil Room are there; in the veil room, Harry, Luna, Neville (and perhaps Ginny) are drawn to it, and Ron and Hermione aren't.
- The Christmas at Grimmauld is there but brief.