The Thing (1982)
About The Thing
Members of an American scientific research outpost in Antarctica find themselves battling a parasitic alien organism capable of perfectly imitating its victims. They soon discover that this task will be harder than they thought, as they don’t know which members of the team have already been assimilated and their paranoia threatens to tear them apart.
This 1982 John Carpenter classic features a charming Kurt Russell and some truly freaky special effects. The blood test sequence is one of the tensest scenes in movie history.