this be a unknown very satisfy alien film . this film move along at a nice pace . the alien be creepy and the action be almost non stop . they throw a lot of great turn in the story and the acting be pretty solid . the film even have a cameo from the talentless richard belzer who actually do a decent job . i would have like some nudity in this story but you can not have it all . this film be pre cgi so it have an awesome selection of effect do on set . it hard to believe they could make such a good movie from a hienlin book . whatever and just see it .