The Body Stealers, also known as Thin Air, is a 1969 British science fiction film directed by Gerry Levy, about the disappearance of British armed forces paratroopers in mid-air whilst on a routine jump. Two investigators try to figure out what happened and uncover an alien plot to steal bodies of earthlings by snatching them out of the air. The film was also released as Invasion of the Body Stealers.