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.
You can now watch Lifeforce online on the following streaming providers in the United States.
| Editing | John Grover | Editor |
| Sound | Henry Mancini | Original Music Composer |
| Writing | Michael Armstrong | Screenplay |
| Directing | Tobe Hooper | Director |
| Production | Yoram Globus | Producer |
| Camera | Alan Hume | Director of Photography |
| Writing | Olaf Pooley | Screenplay |
| Writing | Dan O'Bannon | Screenplay |
| Production | Menahem Golan | Producer |
| Writing | Don Jakoby | Screenplay |
| Writing | Colin Wilson | Novel |
| Costume & Make-Up | Carin Hooper | Costume Design |
| Production | Ann Stanborough | Casting |
| Production | Maude Spector | Casting |
| Crew | Michael Kamen | Additional Music |
| Production | Michael J. Kagan | Associate Producer |
| Crew | Chris Webb | Stunts |
| Visual Effects | John Dykstra | Visual Effects |
| Art | Terry Knight | Art Direction |
| Costume & Make-Up | Renee Heimer | Wardrobe Designer |
| Costume & Make-Up | Patricia Kirkman | Hairdresser |
| Crew | Sadie Eden | Stunts |
| Crew | Roy Alon | Stunts |
| Crew | Tracey Eddon | Stunts |
| Crew | Dickey Beer | Stunts |
| Crew | Gareth Milne | Stunts |
| Crew | Graeme Crowther | Stunts |
| Crew | Ray Ford | Stunts |
| Crew | Terry Forrestal | Stunts |
| Crew | Dorothy Ford | Stunts |
| Crew | David Brandon | Stunts |
| Crew | Andy Bradford | Stunts |
| Crew | Stuart Fell | Stunts |
| Crew | Reg Harding | Stunts |
| Crew | Frank Henson | Stunts |
| Crew | Fred Haggerty | Stunts |
| Crew | Alf Joint | Stunts |
| Crew | Dinny Powell | Stunts |
| Crew | Denise Ryan | Stunts |
| Crew | Michael Scott-Law | Stunts |
| Crew | Doug Robinson | Stunts |
| Crew | Tip Tipping | Stunts |
| Crew | Stuart St. Paul | Stunts |
| Crew | Malcolm Weaver | Stunts |
