This was a pleasant surprise. I have watched almost all of the horror movies with a rating of 4 or higher. There are so many turds out there. This is not one of them. The cinematography and location were very good. The acting was well above average as well. But most importantly the characters were believable. It had scenes that reminded me of Alien. Not much gore but a lot of tension... my type of movie. Apparently i have to have 10 lines of text so the rest of the review is optional. If you like movies where the characters are competent (like the Descent or maybe Aliens) you might enjoy this movie. One of my biggest gripes with most horror movies is that they make the people complete idiots. I find it annoying and end up wanting them to die or not caring. I greatly prefer movies like this one were the people are just trying to do their job and be good at it.