I saw this on Friday. I really enjoyed the books - unfortunately I can't remember the last book in too much detail, other than getting fedup with the love triangle aspect of it - but I disliked the first film (hated how it pulled its punches) but thoroughly enjoyed the second film. And I really enjoyed this one too.
Yeah, not much happened in terms of action, but it was such an intense and emotionally charged film. I think J-Law is simply fantastic. Her song was wonderful, I thought. And Josh Hutcherson as well - despite his lack of screen time. They both bring some very heavy emotional weight to the film.
It's just a shame it ended where it did. It felt like no time had passed and I could have sat through more. But, of course, I understand why they did it - not to be money grabber - but to give everything the time it needed. I look forward to the next one.