Movies like The Sea Serpent (1985)
The best movies like The Sea Serpent (1985) are The Last House (2026), Underwater (2020) and Splinter (2008). If The Sea Serpent hooked you with its science fiction and horror, these 30 similar films are what to watch next, and every pick says why it matches.
Quick picks
- Highest ratedAlien: Romulus (2024)7.2/10 from 5,060 votes
- NewestThe Last House (2026)Released 2026
- In SpanishThe Wailing (2024)Also in Spanish
The Last House (2026)
A family suddenly sealed inside their home must work together to survive against dwindling resources and the ominous threat keeping them trapped.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisUnderwater (2020)
After an earthquake destroys their underwater station, six researchers must navigate two miles along the dangerous, unknown depths of the ocean floor to make it to safety in a race against time.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies 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 thisDark Light (2019)
A woman returns to her family home and discovers it to be inhabited by monsters.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisIsland of Terror (1966)
When a small island community becomes overrun with creeping, blobbish, tentacled monsters that liquefy and digest the bones from living creatures, the community struggles to fight back.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
SnoozefestMovies like thisThe Mist (2007)
After a violent storm, a dense cloud of mist envelops a small Maine town, trapping David Drayton and his five-year-old son in a local grocery store with other local residents. They soon discover that the mist conceals deadly horrors that threaten their lives, and worse, their sanity.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Worth the HypeMovies like thisCreature from the Black Lagoon (1954)
When scientists exploring the Amazon River stumble on a “missing link” connecting humans and fish, they plan to capture it for later study. But the Creature has plans of his own, and has set his sights on the lead scientist's beautiful fiancée, Kay.
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 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 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 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 thisThe Asphyx (1972)
Hugo is a brilliant turn-of-the-century scientist, loved and respected by his family and friends, admired by his colleagues. But he is a man quickly becoming obsessed with a curious and frightening question...What is the mysterious apparition found in the photographs of his dying subjects?
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisBooks of Blood (2020)
A journey into uncharted and forbidden territory through three tales tangled in space and time.
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 thisX: The Unknown (1956)
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.
Why it matches: Recommended by TMDB viewers · both horror & science fiction
Popcorn FlickMovies like thisThe Wailing (2024)
Andrea, in search of her biological family, feels stalked by an invisible threat. Other women before them have suffered the same fate. Twenty years earlier, on the other side of the world, Camille, fascinated by Marie, tries to warn her of a threat hanging over her.
Why it matches: Recommended by TMDB viewers · both horror
SnoozefestMovies like thisSweetheart (2019)
Jenn has washed ashore a small tropical island and it doesn’t take her long to realize she’s completely alone. She must spend her days not only surviving the elements, but must also fend off the malevolent force that comes out each night.
Why it matches: Recommended by TMDB viewers · both horror
Popcorn FlickMovies like thisGodzilla: King of the Monsters (2019)
Follows the heroic efforts of the crypto-zoological agency Monarch as its members face off against a battery of god-sized monsters, including the mighty Godzilla, who collides with Mothra, Rodan, and his ultimate nemesis, the three-headed King Ghidorah. When these ancient super-species, thought to be mere myths, rise again, they all vie for supremacy, leaving humanity's very existence hanging in the balance.
Why it matches: Recommended by TMDB viewers · both science fiction
Popcorn FlickMovies like thisNightbreed (1990)
A troubled young man is drawn to a mythical place called Midian where a variety of friendly monsters are hiding from humanity. Meanwhile, a sadistic serial killer is looking for a patsy.
Why it matches: Recommended by TMDB viewers · both horror
Popcorn FlickMovies like thisSpectral (2016)
A special-ops team is dispatched to fight supernatural beings that have taken over a European city.
Why it matches: Recommended by TMDB viewers · both science fiction
Popcorn FlickMovies like thisIsland of the Fishmen (1979)
After their prison ship sinks in the Caribbean, a group of prisoners and a doctor wash ashore on a seemingly deserted island. They soon discover a strange couple, who invite them to stay at their house. While the prisoners plan an escape, the doctor does some investigating, and soon finds out just what the pair are really doing, and why the prisoners keep disappearing mysteriously.
Why it matches: Similar story and style · both science fiction & horror
SnoozefestMovies like thisCreature from the Lake (2020)
A pair of filmmakers and monster-hunters embark on a mission to capture and film a creature residing in a lake.
Why it matches: Similar story and style · both science fiction & horror
The Beast from 20,000 Fathoms (1953)
The controlled explosion of an atomic bomb in the Arctic Circle awakens a frozen dinosaur that will wreak havoc in New York City.
Why it matches: Similar story and style · both horror & science fiction
Popcorn FlickMovies like thisThe Phantom from 10,000 Leagues (1955)
A marine biologist and a government agent investigate mysterious deaths and rumors of a sea monster in a secluded ocean cove, and find themselves involved with a marine biology professor conducting secretive experiments, international spies trying to steal his secrets, a radioactive light on the sea bottom, and the malevolent thing which guards it.
Why it matches: Similar story and style · both horror & science fiction
SnoozefestMovies like thisMonster from the Ocean Floor (1954)
Julie, an American on vacation in Mexico, spots a giant, one-eyed amoeba rising from the ocean, but when she tries to tell the authorities, no one believes her. She finally teams up with a marine biologist in an attempt to destroy it.
Why it matches: Similar story and style · both science fiction & horror
The Monster That Challenged the World (1957)
Giants Mollusks are released from the earth by an earthquake and start killing people.
Why it matches: Similar story and style · both horror & science fiction
SnoozefestMovies like thisThe Giant Behemoth (1959)
Marine atomic tests cause changes in the ocean's ecosystem resulting in dangerous blobs of radiation and the resurrection of a dormant dinosaur which threatens London.
Why it matches: Similar story and style · both science fiction & horror
SnoozefestMovies like thisThe Son of Kong (1933)
Beleaguered adventurer Carl Denham returns to the island where he found King Kong.
Why it matches: Similar story and style · both horror & science fiction
SnoozefestMovies like thisThe She-Creature (1956)
A mysterious hypnotist reverts his beautiful assistant back into the form of a prehistoric sea monster that she was in a past life.
Why it matches: Similar story and style · both science fiction & horror
The Horror of Party Beach (1964)
Radioactive waste dumped off the coastline creates mutant monsters. The beasts attack slumber parties, beaches, tourists, and terrorize a waterfront community as a scientist, his daughter, her boyfriend and the local police try to find a way to stop them.
Why it matches: Similar story and style · both horror & science fiction
SnoozefestMovies like this
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Frequently asked questions
What are the best movies like The Sea Serpent?
The closest matches to The Sea Serpent are The Last House (2026), Underwater (2020) and Splinter (2008). Below are 27 more, each with the reason it matches.
What should I watch after The Sea Serpent?
Start with The Last House (2026), the closest match to The Sea Serpent.
What is the highest-rated movie like The Sea Serpent?
Alien: Romulus (2024), rated 7.2/10 by 5,060 TMDB users.
What is the newest movie like The Sea Serpent?
The Last House (2026) is the most recent release on this list.
Are there Spanish movies like The Sea Serpent?
Yes: The Wailing (2024).
How are movies similar to The Sea Serpent chosen?
First come films that Trakt’s viewers watch alongside The Sea Serpent, then TMDB’s recommendations and films it rates as similar in story and genre. Each pick says which signal put it there.