This was one of the creepiest movies I've seen. (Kind of like felt when watching the old version of Last House on the Left, though I think that movie was a bit more creepy cause it was more realistic). The concept was super disturbing, and overall the acting was okay. The villians very creepy and disturbed. Overall I'd give the movie a 7/10, B rating.
Alien is what a true horror masterpiece is suppose to be. All these new horror flicks we get are really a disgrace and embarresing. All it is is just gore. Or some ghost/supernatural crap that we get every year.