The Divide

I heard about this movie after it debuted at SXSW this year, but the trailer looks amazing.  Directed by Xavier Gans (Hitman), and starring Michael Biehn (Aliens) and Milo Ventimiglia (Heroes), the residents of a New York highrise retreat to the basement following a nuclear attack, where things fall apart.  This looks like my kind of movie, and January can't get here soon enough!

Here's the opening scene:

You can see two preview clips Here