I can’t get enough of those fake movie trailers. You know the type I mean, where someone will make a trailer for a movie to make it look like a completely different genre.
Not quite what you’re asking for, but I was deeply disappointed when Blow’d Up did not actually get made. It has a “Snakes on a Plane” kind of appeal in its simplicity.
I remember a longer trailer, one with more explosions, (including at least a semi), but I can’t find it.
Not only that, but Anna Nicole Smith appears as if she was actually acting in it! (Her role in Naked Gun 33 1/3 wasn’t that bad, but you could still tell that she was, well, Anna Nicole Smith.)
In this case, they have a screenplay, and managed to film enough scenes for a trailer. I’d love it if they could film the whole movie: The South Will Rise Again.