I think the premise of this film is very intriguing, but I think the execution was flawed. The actors were all very well cast and played their roles brilliantly, but I think the script was a bit shoddy in some places and could have benefited from being longer and fleshing out the characters a bit more- the potential was there but the back stories weren't fully utilized. The story could have done with more development as well- it felt a tad rushed in places.
That being said, I think this film is (sadly) very relevant to the world today. It has an important message that needs to be heard, and so far this is one of the only (if not the only) films that touches on this subject matter. It deserves a wider audience because it really does have a lot to say.
I think the film was well cast, with Norman Reedus and Garret Backstrom giving great performances. They really make you care about their characters, which from the premise of the film clearly isn't the easiest thing to do, but that is really the whole point. The script and the direction could have been better, but overall the film succeeds in doing what it set out to do- make you think.