My 3/10 rating is generous.

Rating: 3/10 (1 July 2013)

One of the worst movies I've ever seen, definitely one of the most overrated. As other commenters have stated, I am still trying to fathom the high score it has received on IMDb. It defies logic. There is nothing about this movie that is even in the vicinity of an 8. I smell something untoward going on with the rating system here.
The movie reminds of "Bruno." Almost just as crass, almost just as offensive, almost just as bad, definitely similarly overrated. I was never angrier after leaving a theater than I was when seeing Bruno about which I complained often about wanting my money back, but I was similarly upset about wasting my time on this movie. Where does one start? To start, it's not a movie. It's some kind of experiment, semi-reality based, semi-scripted. The weak plot takes a back seat to the crass, offensive, juevenile dialogue. There is so much time spent on hearing characters rant about their bodily functions you forget that they are supposed to be in the middle of the apocalypse. When the plot does take center stage, it's clear the whole movie is just as an excuse for the writer (Seth Rogen?) to show off his black book of Hollywood friends. In fact the whole experiment seems to just be an excuse for cameos from random celebrities.
Laughs were few and had I not had such high hopes for this film based on the misleadingly high reviews, I would have walked out. Save your time and your money. You haven't missed a thing.