Stars line up for apocalyptic comedy.

It has been revealed that Jason Segel and David Krumholtz are set to cameo as themselves in Seth Rogen and Evan Goldberg’s directorial debut ‘End of the World.’ Heat Vision adds that ‘Harry Potter’ star Emma Watson is in negotiations to cameo as herself.

Expanding on the short ‘Jay and Seth vs. the Apocalypse,’ the long gesting film stars Rogen, Jay Baruchel, James Franco, Jonah Hill, Danny McBride and Craig Robinson, all playing meta-versions of themselves, as they are stuck in Franco’s Los Angeles apartment facing the end of the world.