Left behind after the Rapture, a young woman (Anna Kendrick) and her boyfriend (John Francis Daley) battle their way through a religious apocalypse on a mission to prevent the Antichrist (Craig Robinson) from taking her as his unholy bride.
It never does live up to its potential, instead becoming bogged down in a repellent character who is supposed to be savagely satirical but is really just tediously crass.
Rapture-Palooza is a film worth sticking though as the third act goes for broke and delivers many of the story's biggest laughs, ending far stronger than it started.
In a post-South Park world, lazy execution of a ribald, potentially controversial concept will not suffice -- especially not when the apocalypse is being handled with much more wit, vim and verve just across the megaplex.
Should please those who own Shaun of the Dead on Blu-ray, and can quote one-liners from The Hitchhiker's Guide to the Galaxy (the novel, not the film).