
This sort of reminded me of Zombieland, minus the zombies and comedy. It's dark, grimy and more intense and really deals more with human nature than the deadly virus.
Our 4 leads are trying to simply survive and get to a locale that they feel they can be safe and along the way they encounter problems, not just with others but within their own group, which leads to a lot of those "what would I do" type situations. It helps that they got solid actors with Chris Pine (James T. Kirk in Star Trek) getting a lot of screen time.
It's not a bad film by any means, but I like my "horror" with a bit more action so it didn't blow me away. It's sort of tame on the horror scale and leans more towards the thought-provoking, emotional character study side of things. Ultimately it really adds nothing to the survivalist film genre though but it passes in a swift 84 minutes so I recommend giving it a look if it sounds like your thing.
6/10