I'm a full grown man and I must confess this film gave me terrible nightmares for weeks. The aliens in this film were beyond ugly, the look of them made me gasp in horror and the thought of meeting them makes my heart pound faster than the pistons in a 2 stroke motorbike engine. I'm currently seeking therapy just to get myself over this very scary film filled with disgusting looking aliens that terrorise my nightmares. This film is too scary for the rating it has. I think only adults brave at heart should watch this film, don't underestimate this film's savagery.