It was pretty good when in started, but then it started to slip from the plot. I didn't really get any apocalypse vibes from it. But i did get a healthy dose of awkwardness. It was really anticlimactic in the end, and I'm not sure what the message was supposed to be. It doesn't really work as a comedy or a horror movie. Don't know what its trying to be, but what ever that is, its failing. Personally, I feel like the entire movie is just a slap in the face.
An utter waste of such good actors.