The Body Stealers, also known as Invasion of the Body Stealers and Thin Air, is a 1969 British science fiction film directed by Gerry Levy, and starring George Sanders and Maurice Evans.
Plot: When British paratroopers disappear in mid-air during routine jumps, former air force investigator Bob Megan is brought in to solve the mystery. While making inquiries at a military research laboratory headed by Dr Matthews, he has several encounters with a woman called Lorna who vanishes after each meeting. One of the troopers is found barely alive and dies on arrival at the laboratory. An autopsy performed by Dr Julie Slade reveals that the man's biochemistry had been altered. Megan learns that all of the missing troopers had received spaceflight training, leading Matthews to theorise that they are being adapted to survive in a non-Earth environment.
Credits George Sanders as General Armstrong Maurice Evans as Dr Matthews and Marthus Patrick Allen as Bob Megan Neil Connery as Jim Radford Hilary Dwyer as Dr Julie Slade Robert Flemyng as Wing Commander Baldwin Lorna Wilde as Lorna Allan Cuthbertson as Hindesmith Michael Culver as Lieutenant Bailes Sally Faulkner as Joanna Shelagh Fraser as Mrs Thatcher Carl Rigg as Briggs Carol Hawkins as Paula Dixon Adams as David Derek Pollitt as Davies Johnnie Wade as Orderly Clifford Earl as Sergeant in laboratory
Directed by Gerry Levy Written by Michael St. Clair, Gerry Levy Produced by Tony Tenser Cinematography John Coquillon Edited by Howard Lanning Music by Reg Tilsley