this be a decent sci fi flick . good performance by julie warner and eric thal and and of course there no role that donald sutherland can not pull off . alien effect be revoltingly good . ok and it not completely true to heinlein magnificent novel . hollywood have a formula and ( the happy end and the obligatory love interest of one or more of the star and etc . ) and any deviation from it be exceedingly rare . that why foreign film be good and because they be not bind by the formula . i have notice that great sci fi movie be almost always originally write for the screen and rather than adapt from book . book be always good than movie and but science fiction seem to be particularly so .