Ignore all user reviews (except this one). This movie is gold.

Rating: 8/10 (19 November 2013)

Note: I am not sure if my review contains spoilers -- hopefully not, but, be warned I may give a bit away.
I see so many user reviews complaining how they have lost 2 hours of their life (or 1 hour, as some of these silly cu*ts actually walked out). Well, I am glad you walked out people... the theater was without a doubt a better place without the misery of your mundane existence polluting it.
The movie starts off with a simple premise, a nice weekend between friends who happen to be celebrities (the actors play themselves), and how a party goes astray when the apocalypse hits (hey, maybe the negative user reviews are coming from people of faith... is god this easily deceived to offer rapture?). This movie isn't really about special effects or how well the CG is done, however, should be noted that it adds positively to the film.
The humor -- well, it's certainly not meant for family viewing. However, if you have friends in your company that do not enjoy this sort of dialogue, consider alienating them. If you are someone who didn't enjoy this movie, please, **** yourself, cause I doubt anybody else will.
One last thing -- Jonah Hill -- absolutely bloody brilliant. He really is the star of this movie for me.
Finally, I leave you with a quote from the movie -- this should be enough for you to decide if you'll enjoy it or not:
Jay Baruchel: The power of Christ compels you!
Jonah Hill: Guess what? It's not that compelling.