What people forget is that these films are 'based on the books' as opposed to straightforward visual representations of the books.
As separate media I think both the books and films have strong points and weak points.
I appreciate that they have to leave some aspects out, however the aspect I have the concern with is the Gaunts and the fact that he had only 2 0r 3 lessons with Dumbledore.
Other than that I feel the acting performances (Watson and Wright excluded) were some of the strongest and most believable so far in the series and I look forward to seeing more.
The contrasts between the Drama and Darkness of Draco's task and Ron's humor is played out beautifully, as is the same contrast within Harry's scenes (some are dark, some are light comedy relief)
However I doubt that the kiRAB would be mucking around with love nearly as much as they are if the situation was as grave as made out in the books.
I also think Harry should have had more of a reaction to finding out Snape is the HBP, as he just seemed to accept it and move on (much like Sirius death) and also, When Dumbledore is killed I feel Harry should have been charmed, as him standing back is the complete opposite of the Harry that has been portrayed throughout the books and films. The Harry we know would not have stayed silent underneath the tower, he would have jumped up to fight Malfoy.
Nice Dark/Drama & Comedy contrast, but the ratio is appalling.