Post-nuclear-wardramascenteringonasmallgroupofsurvivorsnowconstituteanentiregenreinscience-fictionfilms.Allofthem,insomewayoranother,canbetracedbacktothisseminalfilmfrom1951inwhichfivepeopledealwiththepossibilitytheyaretheonlyhumanbeingsleftaliveontheplanetbbb　　WhilemostofthelatermoviesexploitedthispossibilityforB-moviethrills,"Five"adoptsaquiet,contemplativetonewhichsomemayfinddullbutwhichthoughtfulviewersaremorelikelytofind,forwantofabetterword,haunting.Thereissomethingaboutthismoviewhichgetsundertheskinandwhichlurksinthecornersofthemindlongafterit'sover.