Spanish film about the end of the world.
One of the train guys I told to watch Snowpiercer told me about this movie. They're similar in that you just can't go outside. They're different in that this movie follows a guy who got stuck at work.
It's not a bad film at all, but there is one problem in the film's logic that has to do with the danger they face. I won't spoil it here, but there are two scenes where this will bug you.
If you can get past those, and the way the end gets pretty cheesy, there's an entertaining film here.
Oh, I should mention that this is Spanish, so subtitles.