Hunger Games - Catching Fire - Colour me surprised... I really rather enjoyed this. It improved massively on the first film (a bigger budget certainly helped), advancing on the world-building aspect of the film, and doing a better job of fleshing out other characters taking part in the games. Like the first film, I actually thought the Games portion was the weakest bit of the film, though it wasn't as poor as the first film in that regard, and as such still managed to hold my attention.
Negatives would be that it's a bit long, and possibly takes itself a bit too seriously at times... but then it is all rather bleak, so I suppose the hyper serious tone is warranted. Oh, and the film, after going along for over 2 hours, suddenly seems to realise it needs to end pretty soon and so manages to shit out an ending in less then 5 minutes - which is both abrupt and a bit jarring... I realise it's setting up for the last film, but even still, I think a stronger ending would definitely have improved things.