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The horror aspect is a bit iffy, but it looks like a good post-apoc survival flick otherwise. It also kinda reminds me of some recent games (I.E. I Am Alive) which is also a plus.
http://www.upcominghorrormovies.com/movie/colonyFollows a ragtag group of unfortunates struggling to survive amid the world's next ice age. Plagued by sickness and internal conflict, and running short on supplies, the members of Colony 7 suspect the worst when they manage to lose contact with the only known other survivors in neighboring Colony 5. When they set out to discover the fate of the others, the team discover a threat much worse than nature and desperately battle to save themselves in what just might be humanity’s last stand.