Dragon Tats is probably the best film that could have been done out of that book, having read the synopses for both, and has some very good set-pieces, but my opinion has morphed from mild distaste to severe dislike. I'd recommend it to my parents due to the murder-mystery element (not the rape stuff), but I get the feeling that it's trying to be a BIG! MESSAGE! MOVIE! and failing at every point to be subtle when it needs it most. Oh, and I really disliked Sherlock Holmes 2; the things I didn't like about the first one returned in leaps and bounds and the stuff I did like - the funky score, the general 'look' of the film - came back with severe diminishing returns.
But whatevs. I'm in a contrarian mood today, for some reason! :D