A re-cut trailer, or retrailer is a parody trailer for a movie created by editing footage from that movie or from its original trailers, and thus are a form of mashup. They generally derive humor from misrepresenting the original film: for instance, a film with a murderous plot is made to look like a comedy, or vice versa. They became popular on the Internet in 2005.
Jerod at Midwest Sports Fan posted his list of The 15 Best Re-cut Movie Trailers:
One of the most clever and entertaining memes I’ve come across is the practice of re-cutting famous movies to create new, usually wonderfully ironic trailers.
Since there is nothing better to this morning, I have painstakingly watched as many of these re-cut trailers as I could find, sifted through the crap, and will now proudly present you with the following list of the best re-cut movie trailers.