When I initially got into video editing, I wanted to try my hand at recutting a trailer to make it look like it was a different kind of movie. 500 Days of Summer had just come out so I decided to do that and make it look like a thriller.
Fox Searchlight loved it and included it in some of their marketing materials: http://www.foxsearchlight.com/post/2653/itunes-movie-of-the-week-500-days-of-summer-plus-a-new-spoof-trailer/