Borat (2006)
What's scarier than picking up a disheveled Kazakh hitchhiker who's traveling cross-country to make Pam Anderson his bride? Being picked up by a group of drunken South Carolina frat boy troglodytes while hitchhiking. When Borat loses his ride somewhere in the Southwest, he gets more than he bargained for after getting picked up in an RV when he learns the earth-shattering news that he is not in fact the most racist/sexist/generally fucked up dude on the highway (he also gets a peep at his crush Pam's sex tape, but that's not nearly as incredible).