::This Review is of the Shout Factory/Scream Factory Blu-Ray Version Only::
I remember seeing LIFEFORCE with friends in a New York City movie theatre, and then we spent most of our time hooting at the screen over the gobs of gratuitous-seeming nudity, some laughably unconvincing effects (especially of a then-unknown to the US Patrick Stewart, whose death is meant to be horrifying - but is hilarious thanks to him suddenly turning into a literally-bloody THUNDERBIRDS puppet version of himself!), and Steve Railsback's unhinged performance as the lead. Even so, the story, which connects human energy-draining aliens with our vampire mythology, suggested there might be a better film in there someplace - and here it is on the Blu-Ray, in Tobe Hooper's Director's Cut!
Cut from 128 minutes (Hooper's first assembly, still unavailable) to 116 minutes (the Director's Cut here, shown theatrically in Europe), then hacked by US distributor TriStar to 101 minutes (the US version I saw originally), this version of LIFEFORCE is a much more coherent and suspenseful film, reminiscent of Hammer's brilliant adaptation of Nigel Kneale's QUATERMASS AND THE PIT, only on a bigger budget...and, yes, with much more nudity. It's still a crazy-trashy horror film about Naked Space Vampires kissing/sexing the life right out of British men and women, thus turning them into energy-crazed zombies, but with the Director's Cut the craziness feels more the result of Hooper's fevered talent, and the trashiness has a richness and depth it didn't have before.
This is the movie I'd hoped to see when I plunked down my then-expensive $5 for a first-run movie ticket in New York City, so it's worth every penny of the $16.79 plus tax (free shipping via Amazon Prime) I paid for it. There's also a raft of Special Features, some made at the time of production (this had a blockbuster budget by Canon standards) and some created years later by Shout Factory. I haven't had a chance to dig into them yet so I can't judge how good they are, though other reviewers have praised their depth and breadth.
The US version is available on the DVD disc (and if you buy the DVD only, I gather that's the version you get) - so it's there, if you want to compare the two...