Lifeforce (1985)

The joint US/British space shuttle Churchill is sent to observe Halley’s Comet under the command of Colonel Tom Carlsen (Steve Railsback).

While investigating the comet, Carlsen and his team find the naked forms of three humanoid life forms encased in crystal coffin-like containers – one of them a beautiful young female (Mathilda May) – and return them to the Churchill.

Meanwhile, the European Space Research Centre in London loses contact with the shuttle and sends the shuttle Columbia to investigate. They find the crew dead, the Churchill gutted by fire, and an escape pod missing.

When the humanoids are taken back to Earth, Dr Hans Fallada (Frank Finlay) and his team discover they are space vampires who drain the life force from their victims, transforming them into zombies.

Soon, all of London is reeling, and NATO forces threaten to blow the city to smithereens to save the Earth. Meanwhile, the escape pod from the Churchill is recovered in the USA and is found to contain Colonel Tom Carlsen, who claims to be in telepathic contact with the missing female alien.

Based on the Colin WIlson novel Space Vampires, the $25 million film combines elements of such low-budget classics as Planet of the Vampires (1965) and Quatermass and The Pit (1967).

Colonel Tom Carlsen
Steve Railsback
Caine
Peter Firth
Dr Hans Fallada
Frank Finlay
Space Girl
Mathilda May
Dr Armstrong
Patrick Stewart
Bukovsky
Michael Gothard
Derebridge
Nicholas Ball
Sir Percy
Aubrey Morris
Ellen
Nancy Paul
Lamson
John Hallam
1st Vampire
Chris Jagger
2nd Vampire
Bill Malin
Pathologist
Jerome Willis
Physician
Derek Benfield
Metallurgist
John Woodnutt
Minister 
John Forbes-Robertson
Prime Minister
Peter Porteous
Prime Minister’s Secretary
Katherine Schofield
Rawlings
Jamie Roberts
Kelly
Chris Sullivan
Police Surgeon
Gary Hildreth
Colonel
John Golightly
Colonel’s Aide
William Lindsay
Ned Price
Sidney Livingstone
Sykes
Ken Parry

Director
Tobe Hooper