I shall make this post spoiler free... kind of...
I just wanted to note a couple of things:
First off I advise that you SEE THIS IN 2D. My film was in 2d and it was fine, but everyone I know that's seen it in 3D says its really jarring and distracting with the new 48fps shooting. It might be the way of the future, but the way its being done at the moment does not feel right, I'm sure they will fix it eventually but if you love LOTR don't spoil it for yourself in 3D.
Pipes pipes pipes! So many pipes in this film! It's kind of weird seeing them all over in such an anti-smoking world. It has certainly reawakened my desire for a LOTR churchwarden, I've already sent Vauen an enquiry asking if we should be expecting fresh 'Hobbit' licensed pipes. I'll let you know what they say, but I intend not to miss out this time.
CGI smoke... why? I'm sure there are a whole host of dull realistic reasons like health and safety, complications of shooting on a set with smoke on it, teaching actors to light a pipe ect... but damn. Every time I saw the fake smoke rising from a clearly unlit bowl it set my teeth on edge. Also Bilbo kept tamping with his fingers. Unless there is a mysterious churchwarden 'asbestos finger' technique I'm pretty sure somebody needs to get fired for that.
Frog Moreton got its name dropped! Irrelevant but it made me happy.
I think most will probably agree with me when I say the Gollum scenes were the highlight of the film, they are done in an impressively tense and scary way - kind of surprising as we the audience know him quite well by now and shouldn't really have that fear.