I'm trying to recall a specific post-apocalyptic movies. It is kinda like The Colony (2013), where mankind is surviving in a bunker. I can't remember if it is due to climate change or nuclear fallout but I do remember it was a group of people trying to survive.
I remember there was some really demented people, women were scarce so much in fact that they were raping this one woman so much that she had (expired..). they were fighting for their lives and there were cannibals in the movie.
Also there was a good guy like Laurence Fishburne who died in the beginning and a bad guy like Bill Paxton and there was a young hero like Kevin Zegers.... But it is none of these actors and I have watched The Colony over and over.