If nothing else, The Hunger Games is a box office phenomenon and will in all likelihood set an all time record. I talked to the manager at the theater where I saw it and found out it sold out all 14 screens for the midnight showing and they even had an overflow 3 AM showing. The mid-afternoon showing I attended was the first of 4 dedicated full time screens not to sell out (for which I was grateful) with about 90%. It'll give a killer boost to the 2012 box office. It, like Twilight, is a combination of marketing skill and dumb luck. With a reported budget of only $78 mil (a good portion of which was apparently spent on costumes), it's even more phenomenal.
As for the movie itself, I call it half step above my Hollywood average at 7 1/2--10. It has some very good elements, and some not so good. The primary examples of the latter are the shaky cam which dominates the first 15-20 minutes (for some reason, not much action going on) and is then used infrequently thereafter, and the weak ending with its eye obviously on the 2 now certain sequels.
The story is hard not to be engaging, obviously. It's been called a rip off of the 2000 Japanese movie, Battle Royale, which I haven't seen, but what HG kept bringing to my mind was the TV show Survivor, and especially Gladiator with its overall theme of individual combat before the mob, chariots used by the contestants for their grand entrance (my favorite scene), and the necessity of winning the crowd. The link to Survivor, in my mind was it's biggest flaw. The "contestants" are introduced in m/f pairs from each district, and they also form alliances, which makes some sense when the goal is money, but not with the ultimate need for all but one to die--even your district partner. The plot does shift a couple of times in that regard, but the incongruity of that plot element bugged me for most of the movie, and in retrospect, still does.
Stanley Tucci, Elizabeth Banks and even Woody Harrelson (out of his normal character), are all excellent in their rolls. Wes Bently and/or his make up artist deserve an academy award for his beard. But Jennifer Lawrence as Katniss Everdeen (I love that name) is stunning with her mercurial, shifting personality, and beauty which runs the gamut from combat survivor to glamorous charmer--which to the directors credit was created and captured well, and is the movies biggest plus.