See a more full opinion/review of mine
here.
I think this is my favorite one too, much more true to the book than GoF, especially. The twins' escape and Umbridge's ride with the centaurs were my favorites, those scenes were played very well, I thought, and were pretty hilarious to watch, as well.
I do think that Sirius's death scene was rather rushed, if the sound had been used, to actually hear Harry screaming, I feel it might have been better, and the veil was just downright disappointing. It was supposed to be a curtain, and Sirius arch backwards into it and just disappear, only seeing shadows behind it, not this funky mist stuff that it was... He just sort of became one with the wall and faded away, a very disappointing death to me.
The Black Family tree was amazing, tho yes they did leave out Sirius' mother, not like I'm especially heartbroken not to see the wretched woman screeching, but it would have been good to help set the mood of the movie as well.
Umbridge's violent pink outfits disgust me, sickened me. She started out just fine, sort of, being a light baby pink all over, but each time you see her she's a more and more violent shade of pink, and at one point was even wearing a fuzzy coat. Staunton plays a wonderfully wicked Umbridge that you have to just love to hate. She definitely got her comeuppance with the centaurs later on. I think they did great work on her.
Overall tho, I did like the movie alot, and seeing Tonks in action is great, all the characters have developed a bit more since GoF, even if it was just in their acting. Luna is great, Evanna fits the character wonderfully, she just makes it all a more positive feeling. Great movie, tho some parts are twisted, others are missing, but then again you can't possibly fit everything in a book into the movie.