Do Not Watch This Movie Sorry, just saw this despite it apparently coming out in 2009.
Okay, my warning said, let me try to explain some of why. The concept is a supernova that happened in the Lyra Constellation (that is crazy in itself, as a constellation is a group of stars that look near each other from our perspective, but in reality are no where near one another -- in other words, a constellation is not a place) and we somehow get two years warning. How? No explanation (a common fault in this movie). Pappa is one of the persons conceiving of the fix to place nukes in orbit and blow them up just before the blast wave comes, thereby creating a magical shield for the planet. Well, if we can get a two year warning, why not? Acting: awful. Science: awful. Accents (actors): really awful. Story: well, most of the story was unexplained within the script. Have you heard of Snappy the Squirrel (Animaniacs)? She had a line that is worth noting here: "Thank you, Mr. Exposition." This story did a lot of telling without ever showing. Don't drop a line to say something you could have shown us.
Another thing, if you've heard the term "Hang a lantern on it," this movie is a classic example. They would introduce ridiculous concepts and try to explain them away by saying it was a ridiculous concept (for example, two actors looking for a necklace they couldn't find, and they were looking in kitchen cabinets -- kitchen cabinets?. But that's okay as long as they mention they hid the necklace in an odd place, right?).
The script tossed in some timely but silly elements, as well. Terrorists who were completely unexplained as to why they were there. Pappa trying to drive off in a semi-truck, but only going about 100 feet before coming to a dead end (couldn't see that far ahead, dad?). Even the title itself: 2012 appeared only in the title, nowhere else in the script.
The wife and daughter were worthless, as well. They were driving from home to the air base where the husband was, and they had to drive about 50 miles, and they COULDN'T GET THERE IN THREE DAYS! At one point, the road was destroyed moments before, and somehow a road crew was able to put a sign up already that said "Road closed." One amazing department of transportation, there.
One possible good thing this movie could be used for: a drinking game. Every time the wife sighs, drink a shot. You'd be plastered before the first commercial break. Be forewarned: have several shot glasses for each person, because she doesn't give a lot of recharge time in some instances.
The writers did not know science, logic, or how to write a decent conversation. Do not watch this film. My girlfriend and I skimmed through the last portion of the movie, and we still want our time back.