Hollywood can really manipulate you with a trailer. Depending on what they show, you can get a really different idea of a movie, based on the perspective presented. This idea has really taken off on the internet, with a bunch of popular movies having their trailers "re-cut" to show them in an entirely different light.

YouTube

This trailer is called "Clark" and it's a take-off of "Christmas Vacation" and "Carrie".  The two are mashed up to show a very different side of Clark Griswold.  So, are you ready to see a "Christmas Vacation In Hell".  Check out "Clark" now.