i give this 4 star because it have a lot of interest theme many here have already mention . from the domestic violence and to sexuality and many of the taboo therein . outside of the gore i really would not call this horror so much a i would science fiction . it bleak and depressing and hopeless . while i do not mind a less than cheery end and i be really very tired of the human suck cliché that central to every movie . i know you can not get a liberal art degree today without bow to the alter of self hatred a a member of the human race and but how bout a a writer or director we pretend we be different than everyone else in the pack and notice that the alien kill the human race be evil . right now and if you be read this and believe that humanity deserve to die and just go out and find a lake and swim til your arm be tire . this way you would not be around to direct the next film or write the next book tell me i deserve to die for be alive . it silly and not thoughtful and and boring .