Most Similar Movies to I Married a Monster From Outer Space (1958)
If you are looking for movies like I Married a Monster From Outer Space (1958), you might like movies tagged with keyword : science fiction, horror, alien, marriage, cold war, b movie, film noir, 1950s, alien invasion, paranoia, suburban life, gender roles, social commentary, american film, black and white, monster, psychological horror, extraterrestrial, mgm, alien threat .
Invasion of the Body Snatchers (1956), The Thing from Another World (1951), Devil Girl From Mars (1954), Phantom From Space (1953), Target Earth (1955), The Atomic Submarine (1959), Quatermass II (1957) ... Let's take a look at the following list...

Invasion of the Body Snatchers (1956)
A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.
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The Thing from Another World (1951)
Scientists and American Air Force officials fend off a bloodthirsty alien organism while at a remote arctic outpost.
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Devil Girl From Mars (1954)
An uptight, leather-clad female alien, armed with a ray gun and accompanied by a menacing robot, comes to Earth to collect Earth's men as breeding stock.
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Phantom From Space (1953)
When an asteroid crashes, the search begins to track down the mysterious aliens.
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Target Earth (1955)
Giant robots from Venus invade Chicago. Stranded in the deserted city are strangers Frank and Nora.
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The Atomic Submarine (1959)
Ships mysteriously disappear on route across the Arctic Sea, and a specially-equipped submarine is sent to investigate.
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Quatermass II (1957)
British Dr. Quatermass (Brian Donlevy) finds a colony of pressure domes built by aliens who are taking over officials.
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The Fly (1958)
A scientist has a horrific accident when he tries to use his newly invented teleportation device.
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The Man From Planet X (1951)
As a mysterious planet hurls itself toward Earth, an enigmatic extraterrestrial scout arrives on a remote Scottish island with unknown intentions.
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The Incredible Shrinking Man (1957)
When Scott Carey begins to shrink because of exposure to a combination of radiation and insecticide, medical science is powerless to help him.
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The Monster That Challenged the World (1957)
An earthquake doesn't just shake up Southern California -- it awakens a nest of monsters lurking in the Salton Sea. These bloodthirsty sea snails are gobbling up anyone who sets foot in the water. And when the creatures move on to land in search of wider hunting grounds, they launch a reign of terror that threatens to spread across the whole country. Humanity's only hope rests on a crew of intrepid scientists and Lt. Cmdr. John Twillinger (Tim Holt).
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It! The Terror From Beyond Space (1958)
The first manned expedition to Mars is decimated by an unknown life form which stows away on the rescue ship.
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It Came From Beneath the Sea (1955)
A giant, radioactive octopus rises from the Philippine Trench to terrorize the North American Pacific Coast.
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Die, Monster, Die! (1965)
A young man visits his fiancée's estate to discover that her wheelchair-bound scientist father has discovered a meteorite that emits mutating radiation rays that have turned the plants in his greenhouse to giants. When his own wife falls victim to this mysterious power, the old man takes it upon himself to destroy the glowing object with disastrous results.
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Riders to the Stars (1954)
Three men are assigned by the Office of Scientific Investigation to man rocket ships to outer space and attempt to capture a meteor.
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The Astronaut's Wife (1999)
After an explosion in space and subsequent two-minute radio-out period, two astronauts return home to their wives. Slightly it's revealed that they're not the same as they were.
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The Angry Red Planet (1959)
One of only two survivors from a Martian expedition is so traumatized she doesn't remember the circumstances of the trip.
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Night Caller From Outer Space (1965)
An alien creature uses the fear of atomic destruction to recruit women for his infertile and dying planet.
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