I'm seeing it this Saturday. I'm SO excited about it because a lot of people at school have been saying how good it was.

The world ending as we know it in the year 2012? I don't buy that at all. I don't buy it because the Earth is forever changing and based on its history, the major changes took place in million year cycles. It's all based on time periods, like the Permian, Triassic, Jurassic, Cretacious, Early and Late Tertiary, etc etc etc. The last major change took place during the Tertiary period which was about 25 million years ago, and still, now, everything looks similar with very little change. I mean, I know a million years isn't much on a geological time scale, it's just that picking the year 2012 for all of this to take place doesn't add up to me, ya know? However, I do expect some things to change because change is always happening...a few rivers and seas change, and continents only move maybe about 60 miles or so. I mean, the difference is hardly noticable. I honestly think the Earth will look about the same (with minor changes) even when we reach the calender year million. And I'm leaving out a polar icecap or two, and I'm also discounting human macro-intervention. Other than that, I think Earth will look the same IMHO. The year 2012 doesn't even come close.
Oh, but if the numbers or time periods don't add up, then I know I'm going to hate it. I hope it's realistic as in believable based on history, and not all "Hollywood" made up Disney stuff.