It looks pretty goddamned strange (and like Richard Kelly will be trying pretty hard to rip off Terry Gilliam), but when you've got The Rock and Stifler in your movie, I'd say that's a wise strategy. Anything with them in it already seems like some hellish mescaline hallucination, so the last thing you want is a buddy cop movie or a hardass takes care of kids flick. That'll really harsh your mellow.
It's also got Bai Ling in it. Which I guess makes sense seeing that it is about the end of the world. She's pretty much the coked up tranny of the apocalypse.