MPAA Rating: R/ Genre: Apocalyptic Comedy/Stars: James Franco, Jonah Hill, Seth Rogen, Jay Baruchel, Danny McBride, Craig Robinson, Michael Cera, Emma Watson, Mindy Kaling, David Krumholtz, Christopher Mintz-Plasse, Rihanna, Martin Starr, Paul Rudd, Channing Tatum, Kevin Hart, Aziz Ansari, Nick Carter, Howie Dorough, Brian Littrell, AJ McLean, Kevin Richardson, Evan…