X: The Unknown

X: The Unknown

It rises from 2000 miles below the earth to melt everything in its path!

1956 · 81 min · ★ 6.1 · Horror, Science Fiction, Mystery

Army radiation experiments awaken a subterranean monster from a fissure that feeds on energy and proceeds to terrorise a remote Scottish village. An American research scientist at a nearby nuclear plant joins with a British investigator to discover why the victims were radioactively burned and why, shortly thereafter, a series of radiation-related incidents are occurring in an ever-growing straight line away from the fissure.

Directed by Leslie Norman · Written by Jimmy Sangster

Your Rating

Cast

Trailers & Videos

Make it a double feature

2h 50m together

X: The Unknown

The Last Appointment!

Both from Leslie Norman.

More from Leslie NormanSee all →

The Last Appointment!The Last Appointment! · 1977
The Last Appointment!
10.01977
MovieAdventureComedy
Two jet-setting playboys, Brett Sinclair and Danny Wilde, investigate crimes. Two episodes of the TV series "The Persuaders" joined into a movie.
Facing the MusicFacing the Music · 1933
Facing the Music
10.01933
MovieMusicRomance
A joyful medley of farce, romance, song and slapstick starring Stanley Lupino as an impressionable youth whose pursuit of an opera singer’s niece lands him in trouble!
The Innocents of ChicagoThe Innocents of Chicago · 1932
The Innocents of Chicago
9.01932
MovieComedy
Naïve young Englishman, Silas P. Binns inherits a substantial business in Chicago. Unaware of the city's reputation for rampant organized crime during the Prohibition era, Silas arrives in America with idealistic expectations. Upon his arrival, he finds himself inadvertently caught in the middle of a fierce and dangerous turf war between rival gangster factions. The humor of the film stems from Silas's "innocent" and oblivious nature as he navigates the violent underworld of Chicago, often mistaking life-threatening situations for ordinary business or social interactions.
Potiphar's WifePotiphar's Wife · 1931
Potiphar's Wife
8.01931
MovieRomance
'A good-looking chauffeur, employed by an aristocratic married lady is tempted to misconduct. His indifference arouses her wrath and he is charged with assault at the Assizes. ' (British Film Institute)
The AvengersThe Avengers · 1961
The Avengers
7.81961
SeriesAction & AdventureCrime
A quirky spy show of the adventures of eccentrically suave British Agent John Steed and his predominantly female partners. Jonathan Steed - an urbane, proper gentleman spy - teams with various assistants throughout the series' run, including Dr. David Keel, Cathy Gale, Emma Peel and Tara King, to repeatedly save the world from diabolical schemes plotted by equally diabolical evil-doers (among them robots and man-eating monsters).
The Persuaders!The Persuaders! · 1971
The Persuaders!
7.71971
SeriesComedyAction & Adventure
An English aristocrat and an American millionaire come together to tackle crime.
The SaintThe Saint · 1962
The Saint
7.41962
SeriesAction & AdventureCrime
Simon Templar is The Saint, a handsome, sophisticated, debonair, modern-day Robin Hood who recovers ill-gotten wealth and redistributes it to those in need.
MandyMandy · 1952
Mandy
7.11952
MovieDrama
London, the early 1950s. Born deaf, Mandy is mute for most of her childhood. As she reaches school age her family itself is in danger of breaking up. Christine, Mandy's mother, has heard of a residential school for the oral education of the deaf.
Gideon's WayGideon's Way · 1965
Gideon's Way
7.01965
SeriesDrama
Gideon's Way is a British television crime series made by ITC Entertainment in 1964/65, based on the novels by John Creasey. The series was made at Elstree in twin production with The Saint TV series. It starred Liverpudlian John Gregson in the title role as Commander George Gideon of Scotland Yard, with Alexander Davion as his assistant, Detective Chief Inspector David Keen, Reginald Jessup as Det. Superintendent LeMaitre, Ian Rossiter as Detective Chief Superintendent Joe Bell and Basil Dignam as Commissioner Scott-Marle. The show did not acknowledge any help from Scotland Yard, any other police force or advisor. Daphne Anderson starred as his wife, Kate with Giles Watling as young son, Malcolm, Richard James as older son, Matthew who seemed to have a lot of new girlfriends and Andrea Allan as daughter, Pru. Unusually for police stories, Gideon was shown as a family man at home though urgent phone calls from his bosses tend to disrupt family plans too often. However, he did admit in "State Visit" that his wife had walked out on him for a while years ago when he put the job first and her second. They live in an expensive detached house in Chelsea.
Return of the SaintReturn of the Saint · 1978
Return of the Saint
7.01978
SeriesAction & Adventure
Follow the swashbuckling exploits of Simon Templar, a modern-day Robin Hood of sorts.
The Cruel SeaThe Cruel Sea · 1953
The Cruel Sea
6.91953
MovieDramaHistory
At the start of World War II, Cmdr. Ericson is assigned to convoy escort HMS Compass Rose with inexperienced officers and men just out of training. The winter seas make life miserable enough, but the men must also harden themselves to rescuing survivors of U-Boat attacks, while seldom able to strike back. Traumatic events afloat and ashore create a warm bond between the skipper and his first officer.
The Night My Number Came UpThe Night My Number Came Up · 1955
The Night My Number Came Up
6.91955
MovieThrillerDrama
British Air Marshal Hardie is attending a party in Hong Kong when he hears of a dream, told by a pilot, in which Hardie's flight to Tokyo on a small Dakota propeller plane crashes on a Japanese beach. Hardie dismisses the dream as pure fantasy, but while he is flying to Tokyo the next day, circumstances start changing to align with the pilot's vivid vision, and it looks like the dream disaster may become a reality.
DunkirkDunkirk · 1958
Dunkirk
6.81958
MovieDramaWar
A British Corporal in France finds himself responsible for the lives of his men when their officer is killed. He has to get them back to Britain somehow. Meanwhile, British civilians are being dragged into the war with Operation Dynamo, the scheme to get the French and British forces back from the Dunkirk beaches. Some come forward to help, others were less willing.
Summer of the Seventeenth DollSummer of the Seventeenth Doll · 1959
Summer of the Seventeenth Doll
6.81959
MovieDramaRomance
Two Australian sugarcane cutters spend their annual five-month vacations in Sydney with their mistresses.
The Case of the Frightened LadyThe Case of the Frightened Lady · 1940
The Case of the Frightened Lady
6.81940
MovieMysteryThriller
A classic British thriller set in a sinister old house, based on a story by Edgar Wallace.
The Long and the Short and the TallThe Long and the Short and the Tall · 1961
The Long and the Short and the Tall
6.71961
MovieWarComedy
Based on a play by Willis Hall. A troop of British soldiers are out in the jungle to record jungle noises and troop noises in the jungle so that the recordings can be played back by other troops to divert the enemy to their whereabouts. As they progress to what they think is closer to the base camp they find themselves farther and farther from radio range until the only channel they can get clearly is that of a Japanese broadcast. They now realize they are probably only 10 to 15 miles from a Japanese camp! The tension is added to by rowdy and openly admitted "non-hero" Private Bamforth who has nothing good to say about anyone and especially Corporal Johnstone (who holds an equal dislike for Bamforth). When a Japanese soldier is taken as their prisoner, the true colours of each man comes to the surface

More Like This

Deadtime StoriesDeadtime Stories · 1986
Deadtime Stories
4.91986
MovieComedyHorror
A babysitting uncle tells his charges three horror stories: about a killer witch; Little Red Riding Hood and a werewolf; and Goldi Lox and the three bears.
Shocking DarkShocking Dark · 1989
Shocking Dark
4.51989
MovieActionScience Fiction
In a polluted future Venice researchers work to improve the situation. One day, unknown forces start killing them. A team of soldiers and a couple of civilians is sent to investigate. Soon, they encounter strange murderous creatures.
SlapfaceSlapface · 2022
Slapface
5.92022
MovieHorrorThriller
A boy deals with the loss of his mother by creating a relationship with a dangerous monster.
Lee Cronin's The MummyLee Cronin's The Mummy · 2026
Lee Cronin's The Mummy
7.92026
MovieHorrorMystery
The young daughter of a journalist disappears into the desert without a trace—eight years later, the broken family is shocked when she is returned to them, as what should be a joyful reunion turns into a living nightmare.
MalignantMalignant · 2021
Malignant
6.72021
MovieHorrorMystery
Madison is paralyzed by shocking visions of grisly murders, and her torment worsens as she discovers that these waking dreams are in fact terrifying realities with a mysterious tie to her past.
The Island of Dr. MoreauThe Island of Dr. Moreau · 1996
The Island of Dr. Moreau
4.91996
MovieScience FictionHorror
A plane crash surviving attorney stumbles upon a mysterious island and is shocked to discover that a brilliant scientist and his lab assistant have found a way to combine human and animal DNA—with horrific results.
Jeepers CreepersJeepers Creepers · 2001
Jeepers Creepers
6.52001
MovieHorror
On a desolate country highway, two homeward-bound teens are nearly run off the road by a maniac in a beat-up truck, and later spot him shoving what appears to be a body down a sewer pipe.
Mary ReillyMary Reilly · 1996
Mary Reilly
5.81996
MovieDramaHorror
A housemaid falls in love with Dr. Jekyll and his darkly mysterious counterpart, Mr. Hyde.
The FlyThe Fly · 1986
The Fly
7.41986
MovieHorrorScience Fiction
When brilliant, eccentric scientist Seth Brundle makes a huge technological breakthrough in teleportation, he decides to test it on himself. Unbeknownst to him, a common housefly manages to get inside the device and the two become one.
Deep RisingDeep Rising · 1998
Deep Rising
6.21998
MovieAdventureAction
A group of heavily armed hijackers board a luxury ocean liner in the South Pacific Ocean to loot it, only to do battle with a series of large-sized, tentacled, man-eating sea creatures who have taken over the ship first.
TarantulaTarantula · 1955
Tarantula
6.51955
MovieScience FictionHorror
A rogue scientist near a small desert town arouses the suspicion of the town's doctor when his lab assistant is found dead from a case of acromegaly, which took only four days to develop. As the doctor investigates, aided by the scientist's new female assistant, they discover that something is devouring local cattle and humans in increasingly large quantities.
Yu-Gi-Oh! The MovieYu-Gi-Oh! The Movie · 2004
Yu-Gi-Oh! The Movie
6.12004
MovieAnimationFantasy
After the conclusion of the Battle City Tournament, deep below the sands of Egypt, an ancient evil has awakened. Anubis, who was defeated centuries ago by Yugi’s mysterious alter ego – the ancient Pharaoh – has returned for revenge. Wielding the power of the Eighth Millennium Item, Anubis is determined to destroy Yugi and take over the world.

Rate this film

Your ratings make Midnight smarter