Movies like The Alien Within (1995)
The best movies like The Alien Within (1995) are Megaboa (2021), 4 Horsemen: Apocalypse (2022) and Splinter (2008). If The Alien Within hooked you with its horror and science fiction, these 30 similar films are what to watch next, and every pick says why it matches.
Quick picks
- Highest ratedThe Fly (1986)7.4/10 from 5,252 votes
- NewestIron Lung (2026)Released 2026
Megaboa (2021)
On a trip to Colombia, a group of college students encounter a fifty-foot boa constrictor, hungry for blood.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like this4 Horsemen: Apocalypse (2022)
A small team of scientists must race against time to stop what seems to be a cascade of global disasters signaling the possible apocalypse and end of days.
Why it matches: Recommended by TMDB viewers · both science fiction & horror
SnoozefestMovies like thisSplinter (2008)
When their plans for a nature trip go awry, Polly and boyfriend Seth decide to check into a motel. On their way, they're carjacked and kidnapped by low-rent crooks Dennis and Lacey, who take the victims and their SUV to a nearby gas station. Along the way, they encounter an increasingly terrifying horde of parasites, and if any of them intend to survive, they'll have to outsmart the deadly organisms.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisThe Bay (2012)
Chaos breaks out in a small Maryland town after an ecological disaster occurs.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
SnoozefestMovies like thisIron Lung (2026)
In a post-apocalyptic future where an event known as "The Quiet Rapture" caused all known stars and habitable planets in the universe to disappear, a convict is sent to search an ocean of blood discovered on a desolate moon, using a small submarine nicknamed the "Iron Lung".
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisScanners (1981)
A scientist trains a man with an advanced telepathic ability called 'scanning' to stop a dangerous Scanner with extraordinary psychic powers from waging war against non-Scanners.
Why it matches: Recommended by TMDB viewers · both science fiction & horror
Popcorn FlickMovies like thisPrometheus (2012)
A team of explorers discover a clue to the origins of mankind on Earth, leading them on a journey to the darkest corners of the universe. There, they must fight a terrifying battle to save the future of the human race.
Why it matches: Recommended by TMDB viewers · both science fiction & horror
Popcorn FlickMovies like thisAlien: Covenant (2017)
The crew of the colony ship Covenant, bound for a remote planet on the far side of the galaxy, discovers what they think is an uncharted paradise but is actually a dark, dangerous world.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisLeviathan (1989)
Underwater deep-sea miners encounter a Soviet wreck and bring back a dangerous cargo to their base on the ocean floor with horrifying results. The crew of the mining base must fight to survive against a genetic mutation that hunts them down one by one.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisDie Alone (2024)
Lost in a world reclaimed by nature and overrun by mysterious creatures, Ethan, a young man with amnesia navigates the dangerous landscape in search of his lost love Emma. His journey takes an unexpected turn when he encounters Mae, a hardened and eccentric survivor. Together, Ethan and Mae face threats both human and otherwise before a fateful encounter with Kai unravels a secret that lies just beyond Ethan's fractured memory.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisThe Thing (2011)
When paleontologist Kate Lloyd travels to an isolated outpost in Antarctica for the expedition of a lifetime, she joins an international team that unearths a remarkable discovery. Their elation quickly turns to fear as they realize that their experiment has freed a mysterious being from its frozen prison. Paranoia spreads like an epidemic as a creature that can mimic anything it touches will pit human against human as it tries to survive and flourish in this spine-tingling thriller.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisYear 10 (2024)
After the fall of civilization, the few survivors have been driven to cannibalism. A young man must confront a violent tribe that has murdered his father and stolen the medicine that keeps his girlfriend alive.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisExtinction (2015)
And suddenly, overnight, the world came to a halt. Two men, two survivors, one kid, and hatred that separates them. A place forgotten by everyone, including the creatures that inhabit the Earth... until now.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisBlood and Snow (2023)
When researchers rescue a fellow scientist who survived a meteorite strike in the Arctic, they discover she may not be who they think she is. Is she some-how changed?
Why it matches: Recommended by TMDB viewers · both science fiction & horror
Popcorn FlickMovies like thisEvent Horizon (1997)
In 2047, a group of astronauts are sent to investigate and salvage the starship Event Horizon which disappeared mysteriously seven years before on its maiden voyage. However, it soon becomes evident that something sinister resides in its corridors.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisThe Faculty (1998)
When creepy things start happening at Herrington High, the students begin to suspect that their faculty is being controlled by body-snatching aliens.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisAlien: Romulus (2024)
While scavenging the deep ends of a derelict space station, a group of young space colonizers come face to face with the most terrifying life form in the universe.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Worth the HypeMovies like thisAlligator (1980)
A baby alligator is flushed down a toilet and survives by eating discarded lab animals that have been injected with growth hormones. The now gigantic animal escapes the city sewers and goes on a rampage, pursued by a cop and a big-game hunter.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisThe Fly (1986)
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.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Worth the HypeMovies like thisV/H/S/Beyond (2024)
The infinite playground of forbidden worlds and dangerous lifeforms offered by the sci-fi horror genre will lead to the biggest, maddest, bloodiest V/H/S ever.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisCritters 2 (1988)
Three bounty hunters from space fly back to the town of Grovers Bend, hoping to save local residents from a new batch of Critter eggs.
Why it matches: Similar story and style · both horror & science fiction
Popcorn FlickMovies like thisEvil Aliens (2006)
The sensationalist reporter Michelle Fox presents the TV show Weird World, with phony matters about UFOS and aliens. When she hears about Cat, a young woman that claims that have been abducted with her boyfriend and become pregnant by aliens, she convinces her chief to travel with a team to the remote Welsh island of Scalled to interview Cat. She invites the cameraman Ricky Anderson with his sound technician partner; the nerd expert in "ufology" and "ley lines" Gavin Gorman; the actress Candy Vixen and an obscure gay actor to prepare the matter. They get a van and wait for the low tide to reach the island, and when they find evidences that aliens are really landed in the location, the ambitious Michelle decides to film her way to fame and wealth.
Why it matches: Similar story and style · both horror & science fiction
SnoozefestMovies like thisThe Lawnmower Man (1992)
A simple man is turned into a genius through the application of computer science.
Why it matches: Similar story and style · both science fiction & horror
SnoozefestMovies like thisAnacondas: Trail of Blood (2009)
A genetically created Anaconda, cut in half, regenerates itself into two new aggressive giant snakes, due to the Blood Orchid.
Why it matches: Similar story and style · both horror
SnoozefestMovies like thisA Sound of Thunder (2005)
When a hunter sent back to the prehistoric era runs off the path he must not leave, he causes a chain reaction that alters history in disastrous ways.
Why it matches: Similar story and style · both science fiction
SnoozefestMovies like thisFlight of the Navigator (1986)
12-year-old David is accidentally knocked out in the forest near his home, but when he awakens eight years have passed. His family is overjoyed to have him back, but is just as perplexed as he is that he hasn't aged. When a NASA scientist discovers a UFO nearby, David gets the chance to unravel the mystery and recover the life he lost.
Why it matches: Similar story and style · both science fiction
Worth the HypeMovies like thisPaycheck (2003)
Michael Jennings is a genius who's hired – and paid handsomely – by high-tech firms to work on highly sensitive projects, after which his short-term memory is erased so he's incapable of breaching security. But at the end of a three-year job, he's told he isn't getting a paycheck and instead receives a mysterious envelope. In it are clues he must piece together to find out why he wasn't paid – and why he's now in hot water.
Why it matches: Similar story and style · both science fiction
Popcorn FlickMovies like thisAlien Autopsy (2006)
Humouristic reconstruction of the 1995 scandal when two British lads were accused of having faked a documentary from the Roswell incident in 1947.
Why it matches: Similar story and style · both science fiction
SnoozefestMovies like thisFantastic Four (2005)
During a space voyage, four scientists are altered by cosmic rays: Reed Richards gains the ability to stretch his body; Sue Storm can become invisible; Johnny Storm controls fire; and Ben Grimm is turned into a super-strong … thing. Together, these "Fantastic Four" must now thwart the evil plans of Dr. Doom and save the world from certain destruction.
Why it matches: Similar story and style · both science fiction
SnoozefestMovies like thisVoyager 1 (2024)
Under the supervision of the tyrannous ruler Supremo, a fleet of aliens responsible for the creation of the universe conduct their daily work around the Milky Way. Among them is a curious alien called Melius, who dreams of leaving their weary job as a star polisher to explore distant planets. When the space probe ‘Voyager 1’ crashes into their ship, Melius sees their chance of escaping using the probe’s coordinates for planet Earth. What follows is an adventure full of extraordinary surprises and new friends, where our hero will be forced to choose between duty and love, their teachings and beliefs.
Why it matches: Similar story and style · both science fiction
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Frequently asked questions
What are the best movies like The Alien Within?
The closest matches to The Alien Within are Megaboa (2021), 4 Horsemen: Apocalypse (2022) and Splinter (2008). Below are 27 more, each with the reason it matches.
What should I watch after The Alien Within?
Start with Megaboa (2021), the closest match to The Alien Within.
What is the highest-rated movie like The Alien Within?
The Fly (1986), rated 7.4/10 by 5,252 TMDB users.
What is the newest movie like The Alien Within?
Iron Lung (2026) is the most recent release on this list.
Are there English movies like The Alien Within?
Yes: Megaboa (2021), 4 Horsemen: Apocalypse (2022) and Splinter (2008).
How are movies similar to The Alien Within chosen?
First come films that Trakt’s viewers watch alongside The Alien Within, then TMDB’s recommendations and films it rates as similar in story and genre. Each pick says which signal put it there.