Lifeforce was based on a novel The Space Vampires (1976) by British criminology and occult writer Colin Wilson. The film was mounted by producers Menahem Golan and Yoram Globus, who in the 1980s were responsible for numerous cheap action and martial arts films usually featuring Chuck Norris or Charles Bronson, as well as several awful Italian-made fantasy films such as Hercules (1983), The Seven Magnificent Gladiators (1985) and The Barbarians (1987). For a brief time, Golan-Globus signed a three-picture deal with Tobe Hooper. Tobe Hooper was then riding on the cult acclaim of The Texas Chain Saw Massacre (1974) and the big-budget breakthrough success of the Steven Spielberg-produced haunted house film Poltergeist (1982).

Golan and Globus sank the biggest budget they ever afforded a film into Lifeforce – a then substantial $25 million. They clearly saw Lifeforce as being a film exploiting the same sort of sf/horror niche as Alien (1979). To such wit, they hired Dan O’Bannon, then a hot genre name as a result of Alien on script, as well as John Dykstra, the man behind the visual effects on Star Wars (1977). Instead, Lifeforce ended up being a big flop. In fact, Lifeforce and Tobe Hooper’s other two big-budget productions for Cannon, the remake of Invaders from Mars (1986) and The Texas Chainsaw Massacre 2 (1986), ended up almost single-handedly sinking Cannon’s finances and forced Golan and Globus to declare bankruptcy by the 1990s. And following his dalliance with Cannon, Tobe Hooper’s career slid down through the 1990s to much dreary direct-to-video hackwork and tv pilots. (See below for Tobe Hooper’s other films).

I kind of liked Lifeforce. If nothing else, it is a conceptually extraordinarily ambitious film that bites off far more than it is ever capable of coherently presenting. The sheer profusion of ideas that it wields bewildered most audiences, but these actually prove to be its pleasure. It comes across as a dazzling conceptual blend of metaphysical whodunnit – sort of a supernatural variation on John Carpenter’s The Thing (1982) – an ingenious highbrow science-fiction reworking of classical vampire mythology and a big-budget apocalyptic effects horror show. Lifeforce can even sort of be construed as a science-fictional reworking of Bram Stoker’s Dracula (1897) – note parallels between Carlsen’s journey into the comet and Jonathan Harker’s opening journey to Castle Dracula in Stoker, and the later scenes using hypnosis of a victim to track the vampire. Dan O’Bannon and co-writer Don Jakoby also appear to be consciously making reference to Nigel Kneale – the images of the unearthed alien artifact and particularly London under influence of alien energies recalls much of Quatermass and the Pit/Five Million Years to Earth (1967). Certainly, you can guarantee that Lifeforce’s conceptual juggle of ideas would have made Nigel Kneale green with envy.

Hooper, Dan O’Bannon and Don Jakoby miscue a number of times – there are more than a few inconsistencies in the script and a confusing ending. The psychic bond between Steve Railsback’s commander and female vampire Mathilda May is not made clear. And the actors seem confused by the proceedings, in particular Steve Railsback who gives a wooden performance. The best of all is French model Mathilda May who, as mentioned, spends the entire film spectacularly undressed and whose entire role is unspeaking and limited to looking enigmatically mysterious. Hooper does impress as the conflict takes on more and more massively scaled proportions – this is one of the few vampire films to take into account the fact that the spread of vampirism must be exponential. The images of London under attack are impressively mounted. And Lifeforce is certainly not a film that lets its pretensions get away with it – it has that O’Bannon-esque sense of fatalistic black humour – not even the British Prime Minister is allowed to get above his station and is shown furtively vampirizing his secretary behind a filing cabinet. John Dykstra’s visual effects and Nick Maley’s makeup effects are absolutely excellent.

Tobe Hooper’s other films are the classic The Texas Chain Saw Massacre (1974), the Southern Gothic Eaten Alive/Deathtrap (1977), the fine tv adaptation of Stephen King’s Salem’s Lot (1979), the slasher film The Funhouse (1981), the Steven Spielberg-produced ghost story Poltergeist (1982), the remake of Invaders from Mars (1986), the underrated The Texas Chainsaw Massacre 2 (1986), the dire pyrokinesis film Spontaneous Combustion (1990), the haunted dress tv movie I’m Dangerous Tonight (1990), the erotic film Night Terrors (1993), a terrible Stephen King adaptation The Mangler (1995), the weird apartment dwellers black comedy The Apartment Complex (1999), Crocodile (2000), the slasher remake Toolbox Murders (2003) and Mortuary (2005), as well as directing the pilots for various genre tv series.

Dan O’Bannon’s other scripts are John Carpenter’s classic genre spoof Dark Star (1974), Alien (1979), the zombie film Dead & Buried (1981), segments of the adult animation anthology Heavy Metal (1981), the hi-tech helicopter action film Blue Thunder (1983), Invaders from Mars (1986) also for Tobe Hooper, Total Recall (1990), the Philip K. Dick adaptation Screamers (1995) and Hemoglobin/Bleeders (1997), as well as directing the zombie film Return of the Living Dead (1985) and the H.P. Lovecraft adaptation The Resurrected (1992). Don Jakoby served as Dan O’Bannon’s writing partner on Blue Thunder and Invaders from Mars and solo-scripted The Philadelphia Experiment (1984), Arachnophobia (1990), Vampires (1998) and Evolution (2001).