Just got back from HP: Deathly Hallows part 2.
So, you know how it's really rare that a movie is better than the book?
This is one of those times.
It was probably the best of the eight, but I wouldn't go as far as all that.
It DID seem to be the one most cognizant that it was a film and the one that played most strongly to the medium's strengths (with the possible exception of the lovely time-travel story that was Cuaron's Prisoner of Azkaban). It was a wonderfully lean but thorough presentation of the Battle of Hogwarts, and nearly every supporting character got a moment to shine: Snape, McGonagall, Aberforth, Neville, Luna, Molly. Fiennes was a real standout. And the soundtrack was understated instead of over-the-top John Williamsy; it knew when to shut the hell up, get out of the way, and let the actors carry the scene. (Which they mostly did. Radcliffe and Watson are still, regrettably, the weakest of the cast, but they're better here than in any of the others.)
The change I liked best was [spoiler]where Harry reveals himself -- having McGonagall step out to defend him was a wonderful reversal from her little-old-lady-in-distress moment in the book, and then we got to see her take Snape on one-on-one[/spoiler].
On the minus side, there wasn't enough for Ron or Hagrid to do (we can blame the latter on Jo but not the former), and Wormtail is left as an unfired Chekov's Gun -- I assumed, when he didn't die in the last movie the way he did in the book, that that was building to something, but now it just looks like his death scene was left on the cutting-room floor.