I really wasn't sure what to feel watching this movie. Having read the book, I knew the story, who the characters where, and what was going to happen. But it was still emotionally confusing. There isn't really a moment in this movie where you're allowed to fully feel the moment of what is happening. For every moment that should be happy or triumphant, such as Ron breaking the horcrux, you immediately have a scene reminding the characters of the sobering reality of their situation. The story piles on hardship after hardship. The action move very fast, with some of the sequences I enjoyed in the book going by so quick I didn't feel like I had the chance to savor them and look for all the details I had waited for (the first chase when Harry leaves home, for example). And that's pretty much how it continued. And actually that's basically how the book went. So you can say that this movie was extremely faithful to the source material, probably as much as any film adaption ever has been. I think I was maybe looking for the movie to provide something that the book didn't--maybe to help me realize how I felt about this story which just seemed to happen, without allowing me to feel a proper release after all the buildup. I am excited for part 2, even knowing how everything will turn out, but this time I won't expect the film to solve any of my issues for me.
