unlike other commentary and i find this film fascinating and even with all it fault and the zombie acting of some of the actor . be a technologist and i find that the experiment interesting and the hardware realistic . although the reading of people mind via computer sound fantastic and experiment be be conduct now to do just this . i will note that this experiment be in a very early stage and with result so far not favorable . the character in the movie be well cast . the girl and although overact a bit and look suitable dumb . the truck driver be a a ringer for real truck driver . the minister convey doubt at first and ( the principal investigator tell the minister that him ( the minister ) and be not sure whether he believe that god create man or that man create god . but the minute when the chip be down and he fall back on his faith . only the phd play the zombie . the secret that they harbor be suitably appropriate for their character . in the face of death they react a real human being would . the movie be a warning against the danger of unlimited surveillance by government . a strictly a thriller and the movie do not have enough thrill . a a scientific exercise with philosophical underpinnings it be fascinate .