I love the books - you need to know that before deciding whether to read my review or not. This movie doesn't completely suck like Goblet of Fire, but it has a lot to criticize.
Yes, I'll say it - they took the longest (and best) book of the series and made it the shortest movie. That's really all you need to know.
These idiots that make these movies have no grasp whatsover on what makes people love these stories! 99% of what makes the books great is left off screen.
If you loved the book, just read it again.