No comedy would be complete without the Wacky Screwup Brother, the Zach Galifianakis in The Hangover-type who is there to throw a wrench in everything with some sort of stupid scheme (also see: Gob Bluth from Arrested Development). It's not so funny in real life.
Hollywood's most creative minds can't get past populating the place with planets that look a whole lot like Earth, populated by rapey aliens and Muppets. But real space is far, far stranger.
It turns out that the great men and women lauded by society for mainstream discoveries, and the underground smut peddlers who advanced the art of masturbation, are often the same people.