Black Rock

IMDB
First time viewed: Yes
Current Release: Yes

A mumblecore survival horror. It kinda has the pitfalls of both. The scenes at the start do feel sort of aimless, but admittedly they set up the characters and an internal group conflict well. And once the survival starts, there's some good stuff, but those bad guys get short changed a little. They aren't quite faceless villains but there's not much development done with them either. 

The film isn't trying to skew the psychological angle, it's happy to just remain an 80's style revenge slasher action piece. It's okay I guess.