Most Similar Movies to The Neptune Factor (1973)
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Silent Venom (2009), Mega Shark vs. Giant Octopus (2009), Mega Shark vs. Mecha Shark (2013), Leviathan (1989), Black Ops (2019), Black Water: Abyss (2020), Black Water: Abyss (2020) ... Let's take a look at the following list...
Silent Venom (2009)
At the tail end of what has become a lackluster career, Lt. Cmdr. James O'Neill (Luke Perry) gets a chance to redeem himself when Adm. Bradley Wallace (Tom Berenger) recruits him to head a classified mission. He is to rescue government scientist Dr. Andrea Swanson (Krista Allen) from an island laboratory. O'Neill retrieves Swanson's team with surprising ease, only to find his ship besieged by the scaly subjects of a top-secret research project -- a vicious breed of genetically altered snakes.
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Mega Shark vs. Giant Octopus (2009)
Strange things are afoot in the depths of the sea. First a passenger plane vanishes over the Pacific Ocean. Then an oil platform is obliterated. Marine biologist Emma MacNeil (Deborah Gibson) is dispatched to investigate the phenomena, and, with the help of Japanese scientist Seiji Shimada (Vic Chao), she makes a discovery that will rock the world: An enormous prehistoric shark and a giant octopus have been awakened from their icy slumbers -- and they're hungry.
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Mega Shark vs. Mecha Shark (2013)
A new mega shark threatens to destroy humanity. The government creates an exact robotic copy of the shark, either equal to or greater than the original. Now they must fight to the death while people and whole cities get in the way.
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Leviathan (1989)
An American deep-sea mining colony stumbles upon a sunken Soviet vessel hiding a horrific secret.
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Black Ops (2019)
Trapped on a never-ending stairwell, members of a black ops team confront a mysterious and terrifying evil while trying to climb to the top.
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Black Water: Abyss (2020)
Five friends exploring a remote cave system in Northern Australia find themselves threatened by a hungry crocodile.
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Black Water: Abyss (2020)
Deep in the forests of Australia, some friends are exploring a remote cave system when a tropical storm hits. As rising flood waters trap them deep below the surface, something even deadlier emerges from the darkness -- killer crocodiles.
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Mega Piranha (2010)
A mutated strain of giant and ferocious Amazonian piranha escape from the jungle rivers and eat their way toward Florida.
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The Abyss (1989)
A civilian diving team is enlisted to search for a lost nuclear submarine and face danger while encountering an alien aquatic species.
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Captain Nemo and the Underwater City (1969)
When Captain Nemo saves the passengers of a sinking ship and takes them to his Utopian underwater city he discovers that not all of his guests agree to remain there forever.
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The Cave (2005)
Bloodthirsty creatures await a pack of divers who become trapped in an underwater cave network.
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Arachnid (2001)
After a man who lived on an island is wounded. A bunch of dudes, and some chick investigate what could have done that.
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Orca (1977)
A hunter squares off against a killer whale seeking vengeance for the death of its mate.
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DeepStar Six (1989)
A team of navy personnel stationed at a temporary base at the bottom of the ocean and tasked with setting up nuclear missiles discovers a huge underwater cavern which houses a giant prehistoric creature.
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Gray Lady Down (1978)
A Navy captain (David Carradine) uses his experimental Snark to reach a nuclear submarine stuck on an ocean ledge.
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Critters 2 (1988)
Eggs of the small, furry alien carnivores are left behind on Earth and, after hatching, again set their appetites on the town of Grover's Bend.
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Eden Log (2007)
A man wakes up deep inside a cave. Suffering amnesia, he has no recollection of how he came to be here or of what happened to the man whose body he finds beside him. Tailed by a mysterious creature, he must continue through this strange and fantastic world. Enclosed, Tolbiac has no other option to reach the surface than to use REZO ZERO, secret observing cells in this...Read all
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Mysterious Island (1961)
During the Civil War a group of Union soldiers and two Confederates escape the stockade using a hot air balloon and end up on a strange Pacific island.
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