I'm actually on my way to see it in about an hour. Eager for a good CGI-fest of world destruction and carrying low expectations as far as narrative or intelligent plot, I think it's a safe bet (not to mention an excuse to satisfy my addiction to movie-theater popcorn).
But at the risk of backlash from my fellow Atheists; I don't see the big deal over its core plot point.
I'm not Christian, yet thoroughly enjoyed "The Exorcist." I don't believe we will suddenly discover easy FTL travel only to find all intelligent races are just like us except with funny ears or foreheads, yet I will watch the latest "Star Trek" movie over and over (Man candy! Man candy!).
Maybe I'm living under a rock, and indeed I haven't had a TV for a year and a half now. But are there really that many people taking "2012" seriously? Seems to me like the usual Hollywood trick of weaving a little history into an outlandish season blockbuster.
Seems to me it's been well proven that the Mayan calendar simply resets in 2012. Yes, it's a 5,000 year calendar so what are the odds you and I would be alive when it resets? And yes, the Mayans themselves seemed to put a lot of significance on numerology, like a major resetting of their calendar. And this is about as major as it gets. But how many people in the world are really putting any stock in it? Enough that a movie is going to stoke those fires?
Then again, if there are any such people, maybe I can get them to give me all their possessions in November 2012, if they have so much faith that said possessions will be useless.