This movie looks like it is going to be hilarious or terrible. There is no in between. It has Seth Rogen, James Franco, Danny McBride, Craig Robinson, Jay Baruchel, and Johan Hill playing themselves as the world is coming to an end. Here's the description I found:
While attending a party at James Franco's house, Seth Rogen, Jay Baruchel and many other celebrities are faced with the apocalypse.
Also in the movie are Michael Cera, Emma Watson, Paul Rudd, Jason Segel, and Aziz Ansari.
Previews
Here's two previews that have some different looks at the film.