'This is the End' trailer: Rihanna slaps Michael Cera when he gets grabby

James Franco, Seth Rogan, Emma Watson, Mindy Kaling, Paul Rudd, Craig Robinson, Jason Segel, Kevin Hart, Jonah Hill, Danny McBridge and plenty more famous people play fictional versions of themselves in an upcoming comedy about celebrities meeting their doom when the end of the world hits Los Angeles.

In the red-band trailer, which hit the web this week, Michael Cera gets a bit too handsy with pop star Rihanna, who then smacks him across the face. "Don't f**king touch my bum, b***h!" she says.

A desperate Emma Watson also puts in an appearance ("Hermione just stole all our s--t.") and Cera eventually gets impaled.

"This is the End," written by Rogen and Evan Goldberg, opens June 14.

Here's the trailer: