Lifeforce
In the blink of an eye, the terror begins.
Overview
A space shuttle mission investigating Halley's Comet brings back a malevolent race of space vampires who transform most of London's population into zombies. The only survivor of the expedition and British authorities attempt to capture a mysterious but beautiful alien woman who appears responsible.
Trailer
Cast

Steve Railsback
Col. Tom Carlsen

Peter Firth
Col. Colin Caine

Frank Finlay
Dr. Hans Fallada

Mathilda May
Space Girl

Patrick Stewart
Dr. Armstrong

Michael Gothard
Dr. Bukovsky

Nicholas Ball
Roger Derebridge

Aubrey Morris
Sir Percy Heseltine

Nancy Paul
Ellen Donaldson

John Hallam
Lamson
John Keegan
Guard
Bill Malin
Second Vampire