Most Similar Movies to Alien Trespass (2009)
If you are looking for movies like Alien Trespass (2009), you might like movies tagged with keyword : sci-fi, comedy, alien, retro, b-movie, alien invasion, small town, homage, black comedy, horror, mystery, usa, indie film, low budget, nostalgia, extraterrestrial, government conspiracy, cold war era, humorous, alien technology .
Trail of the Screaming Forehead (2007), Night Caller From Outer Space (1965), The Troops & Aliens (1979), Strange Invaders (1983), Slither (2006), Grabbers (2012), Save the Green Planet! (2003) ... Let's take a look at the following list...

Trail of the Screaming Forehead (2007)
A small town infestation of crawling alien foreheads that begin attaching to people and taking them over collides with a scientist's experiments to extract foreheadazine and things go horribly horribly wrong.
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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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The Troops & Aliens (1979)
In St. Tropez, French gendarme Cruchot and his men battle petroleum-drinking, human-looking, metallic aliens.
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Strange Invaders (1983)
Alien beings, whose settlement in a small midwestern town, are disturbed by a young professor determined to rescue his son from their clutches.
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Slither (2006)
A small town is taken over by an alien plague, turning residents into zombies and all forms of mutant monsters.
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Grabbers (2012)
When an island off the coast of Ireland is invaded by bloodsucking aliens, the heroes discover that getting drunk is the only way to survive.
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Save the Green Planet! (2003)
Lee Byeong-gu (Shin Ha-kyun) is convinced that there are aliens from Andromeda among us, plotting to destroy Earth. He believes that Kang Man-shik (Baek Yun-shik), the head of a chemical production company, is their leader, and he kidnaps him. Holing up in his secret lair, Byeong-gu interrogates and tortures the supposed alien, hoping that he will confess to his crimes against humanity and call off the planned destruction of the planet before it is too late.
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Manborg (2011)
A mad scientist turns a dead soldier (Matthew Kennedy) into a heroic cyborg.
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Eight Legged Freaks (2002)
Venomous spiders get exposed to a noxious chemical that causes them to grow to monumental proportions.
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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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Sharknado (2013)
A monstrous storm devastates Los Angeles, leaving the streets flooded and infested with sharks.
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The Last Sharknado: It's About Time (2018)
Without water, there is no life. Join a young woman on a journey of a lifetime to reconnect to the source of water for her, and millions of others.
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Men in Black 3 (2012)
Agent J travels in time to M.I.B.'s early days in 1969 to stop an alien from assassinating his friend Agent K and changing history.
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Night of the Creeps (1986)
Alien brain parasites, entering humans through the mouth, turn their host into a killing zombie. Some teenagers start to fight against them.
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Top of the Food Chain (1999)
Dr. Karel Lamonte (Campbell Scott) is an atomic scientist visiting the small Canadian town of Exceptional Vista. A meteor hits the town, which has recently lost its main source of revenue, and people start disappearing. While in a bar, Karel meets several locals, including Sandy Fawkes (Fiona Loewi), who takes him back to her motel, where he meets her brother (Tom Everett Scott). As Karel falls in love with Sandy, he must save the town from corpse-eating aliens.
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Snatchers (2019)
After status-obsessed teen Sara has sex for the first time, she wakes up the next day nine months pregnant-with an alien.
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2 Lava 2 Lantula (2016)
Colton West (Steve Guttenberg) must save Florida when fire-breathing, lava-spewing arachnids return to wreak havoc.
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Lazer Team (2015)
Four losers are thrust into the position of saving the world when they stumble upon a UFO crash site and become genetically equipped to the battle suit on board.
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