VIDEOS:
Hobo With a Shotgun
Hobo takes the law into his own hands. Made by a couple of independent filmmakers from Dartmouth, Nova Scotia. This one was also turned into a full-length movie. Many other indie trailers were made and considered at the South by Southwest Film Festival, and although this was the one featured in the film, a lot of the others (visible on YouTube) are pretty good, too.
Example of:
Defictionalization
Example of:
Real Trailer, Fake Movie