There's a violent vicious alien on board our large empty spaceship. Let's all go into dark rooms alone to look for it. Oh dear, it's got me. There's more to it than that of course, including an intriguing subplot about the venality and greed of "The Company" who want to study the Alien, and many long lingering shots of the, admittedly stunning, set design. But it's the set up of the scares that's the important thing about this movie.
As a monster movie it has few peers.
It all starts very quietly. The crew of the Nostromo, a deep space cargo vessel, are woken from hypersleep by their computer.
"Mother" wants them to investigate a distress signal on a previously uncharted planet, and Ian Holm's science officer is strangely keen on the idea.
We find out why when the investigating shore party find the remains of a huge alien spaceship. The pilot, a giant alien, is long dead, its skeleton strangely buckled as if exploded from within. John Hurt goes down into the bowels of the alien craft, and in one of the great SF scenes of all time, finds a nest of alien eggs. He foolishly gets too close to one, and it hatches, releasing a face-hugging alien that wraps itself tightly around Hurt's head, refusing to let go.
When they get Hurt back to the Nostromo, Ripley (Sigourney Weaver) is reluctant to break quarantine to let them on board, but Ian Holm's science officer overrides her, and Hurt is taken to the medical bay.
Sometime later, the facehugger seems to fall off Hurt's head and he wakes up, seemingly recovered. The crew decide on one last meal before returning to hypersleep.
So as not to spoil one of SF cinemas great shocks, I'll just say that it's about now that the alien makes it appearance, a sharp toothed monster with concentrated acid for blood and a very mean disposition.
...
And the real shocks start to pile up as one by one the crew are picked off by the alien, until Ripley is left to fight the menace alone.
This film changed the look of SF movies for ever. Ridley Scott was a graphic artist, and his attention to detail and eye for a great visual shows in the set design and cinematography. The corridors of the Nostromo are like a series of dark caves, and the strobe-lit chase scenes have the quality of your worst nightmares.
The film was groundbreaking in other ways as well - Sigourney Weaver became one of the first females to carry a major blockbusting movie, (and has gone on in the sequels to an even stronger screen presence)
It also created one of the great SF monsters. Giger's creation went on to become a worldwide phenomenon in comics, models, tie-in novels and posters, almost as well known as those other icons King-Kong and Godzilla.
The recent DVD issue also contains a deleted scene that afficionados have been waiting for - Ripley encounters the first case of alien cocooning when she discovers what the monster has been doing with the crew members it has been taking. It's a pity this scene was deleted, as it explains parts of the second film, and also provides motivation for Ripley's hate of the monster more than just emphasising her fear of it.
To today's audience the first half of the film may seem far too leisurely - there are no establishing shocks in the first reel, and little action until they get into the alien ship. But Scott handles the rising tension brilliantly, and once the alien makes an appearance, it's a white knuckle ride with few equals.
Just don't have lunch before watching it for the first time.