They basically do super low budget rip offs of whatever "big movie" is currently coming out, typically released just a day or two before the actual movie.
The titles are basically almost the same just slightly different
Snakes on a Train
Monster (instead of Cloverfield)
Pirates of Treasure Island (starring Lance Henriksen. No really)
and on and on
It's worth it just to watch the trailers. And most of the movies have trailers.