I think this has to do with buisness and art. Buisniess wise be the make it to show viewers what the movie is gonna be about. Alot of people watch the trailer just to see what its like and if they like it. It has art in it because comedy is an art and they are doing the movie to be comedians the are Jack@$$ 's and do the stuff cause there crazy. It also has art by the stuff that they are doing they are using different objects and tools to make the scenes.
