Just caught this the other day. It wasn't perfect but an interesting horror film that plays homage to many other films.

Basically the concept is the film is set in a world where Michael Myers, Jason, Freddie etc. are real and a group of teens are doing a documentary focusing on Leslie Vernon an upcoming serial killer.

It's more of a mocumentary so while watching it its best not to take it serious. It's got some nice homages and some interesting twists.