This had the makings of a good movie. Good idea, great cast, sigourney weaver, Robert de Niro to name two and lots of money for special effecs! Unfortunately...it disappoints! From about twenty mins in it gets completely lost in it's own need to impress. It becomes even more confusing later on when scenes are added for no apparent reason and more questions are left unanswered than answered! I liked the twist at the end but it wasn't delivered with enough impact and the amazing actors weren't given enough material to work with. Wait for the DVD to be released and then give it six months to come down to less than a fiver before you give it a try!