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Home/Of Unknown Origin/Similar Movies

Of Unknown Origin

Movies Like Of Unknown Origin (1983)

Of Unknown Origin is a 1983 horror film from George P. Cosmatos with a MovieMagicScore of 5.8/10. Here are 20 similar films, ranked by real viewer ratings — starting with Deadly Eyes and Spasms.

Deadly Eyes poster

Deadly Eyes

1982

Corn grain contaminated with steroids produces large rats the size of small dogs who begin feeding on the residents of Toronto. Paul, a college basketball coach, teams up with Kelly, a local health inspector, to uncover the source of the mysterious rat attacks and they eventually try to prevent the opening of a new subway line as well as find the mutant rats nest quickly, or there will be a huge massacre of the entire city!

Spasms poster

Spasms

1983

A gigantic serpent is captured on a remote island and shipped to an American college for experimentation.

Mulberry Street poster

Mulberry Street

2006

A deadly infection breaks out in Manhattan, causing humans to devolve into blood-thirsty rat creatures. Six recently evicted tenants must survive the night and protect their downtown apartment building as the city quickly spirals out of control.

Slugs poster

Slugs

1988

People are dying mysteriously and gruesomely, and nobody has a clue what the cause is. Only health worker Mike Brady has a possible solution, but his theory of killer slugs is laughed at by the authorities. Only when the body count begins to rise and a slug expert from England begins snooping around does it begin to look like Mike had the right idea after all.

Willard poster

Willard

1971

A social misfit, Willard is made fun of by his co-workers, and squeezed out of the company started by his deceased father by his boss. His only friends are a couple of rats he raised at home, Ben and Socrates. However, when one of them is killed at work, he goes on a rampage using his rats to attack those who have been tormenting him.

The Food of the Gods poster

The Food of the Gods

1976

Morgan and his friends are on a hunting trip on a remote Canadian island when they are attacked by a swarm of giant wasps. Looking for help, Morgan stumbles across a barn inhabited by an enormous killer chicken. After doing some exploring, they discover the entire island is crawling with animals that have somehow grown to giant size. The most dangerous of all of these, however, are the rats, who are mobilizing to do battle with the human intruders.

Nightmares poster

Nightmares

1983

A collection of short stories. In one a woman who leaves her house late at night to drive to the store while a killer is loose encounters some problems. In the second an arcade whiz kid's obsession with a game leads to deadly consequences. In the third a small town priest loses his faith and decides to leave town, but in the desert is stalked by a mysterious black pick-up truck. In the final story, a family's problem with a rat is larger than they think.

MouseHunt poster

MouseHunt

1997

Down-on-their luck brothers, Lars and Ernie Smuntz, aren't happy with the crumbling old mansion they inherit... until they discover the estate is worth millions. Before they can cash in, they have to rid the house of its single, stubborn occupant—a tiny and tenacious mouse.

Wild Beasts poster

Wild Beasts

1984

PCP is unexplainably released into the Frankfurt water supply and sends the zoo inhabitants crazy. One evening after a malfunction of zoo security the gonzo critters rampage through the city eating and killing whatever they fancy, wreaking a night of bloody terror. It's up to regular Italian-trash whipping girl Lorraine De Selle and obnoxious Super Mario lookalike zookeeper John Aldrich to sort it out.

Cocaine Bear poster

Cocaine Bear

2023

Inspired by a true story, an oddball group of cops, criminals, tourists and teens converge in a Georgia forest where a 500-pound black bear goes on a murderous rampage after unintentionally ingesting cocaine.

Food of the Gods II poster

Food of the Gods II

1989

A growth hormone experiment gets out of hand, when the the resulting giant man-eating rats escape, reaking havoc on the unsuspecting campus. Much blood-letting follows.

The Premature Burial poster

The Premature Burial

1962

An artist grows distant from his new wife as an irrational fear of premature burial consumes him.

Ben poster

Ben

1972

A lonely boy becomes good friends with Ben, a rat. This rat is also the leader of a pack of vicious killer rats, killing lots of people.

Day of the Animals poster

Day of the Animals

1977

The depletion of the earth's ozone layer causes animals above the altitude of 5000 feet to run amok, which is very unfortunate for a group of hikers who get dropped off up there by helicopter just before the quarantine is announced.

Castle of Purity poster

Castle of Purity

1973

A disciplined and sexually driven man forces his family to stay isolated in their home in order to protect them from the “evil nature” of human beings.

The Housemaid poster

The Housemaid

1960

A piano composer's family moves into a new house; when his pregnant wife collapses from working to support the family, he hires a housemaid to help with housework.

The Park Is Mine poster

The Park Is Mine

1986

A Vietnam vet takes forceful control of Central Park to remember those who served and died in the Vietnam War.

Grizzly Rage poster

Grizzly Rage

2007

After accidentally killing a bear cub while celebrating graduation in the woods, four teens become the target of a seemingly unstoppable Grizzly.

Frogs poster

Frogs

1972

Jason Crockett is an aging, grumpy, physically disabled millionaire who invites his family to his island estate for his birthday celebration. Pickett Smith is a free-lance photographer who is doing a pollution layout for an ecology magazine. Jason Crockett hates nature, poisoning anything that crawls on his property. On the night of his birthday the frogs and other members of nature begin to pay Crockett back.

The Chant of Jimmie Blacksmith poster

The Chant of Jimmie Blacksmith

1978

The true story of a part Aboriginal man who finds the pressure of adapting to white culture intolerable, and as a result snaps in a violent and horrific manner.

Frequently asked

What are the best movies like Of Unknown Origin?

The top films similar to Of Unknown Origin by MovieMagicScore are Deadly Eyes (5.7), Spasms (4.4), Mulberry Street (5.3). Each shares horror themes and is ranked by real viewer ratings, not critics or studios.

Is Of Unknown Origin worth watching?

Of Unknown Origin holds a MovieMagicScore of 5.8/10 from 102 viewer ratings.

What kind of movie is Of Unknown Origin?

Of Unknown Origin (1983) is a horror film directed by George P. Cosmatos, starring Peter Weller, Jennifer Dale, Lawrence Dane.

Where can I find more recommendations like Of Unknown Origin?

Browse the full ranked list above, or explore more horror recommendations on MovieMagicScore, where every list is ordered by genuine viewer ratings.

Keep exploring

Movies like Deadly Eyes Movies like Spasms Movies like Mulberry Street Movies like Slugs Movies like Willard Movies like The Food of the Gods

About movies like Of Unknown Origin

This ranked list pairs Of Unknown Origin (1983), a horror film from George P. Cosmatos, with similar titles by genre, theme and cast overlap (fans of Peter Weller take note). Unlike critic-driven sites, every position here is ordered by MovieMagicScore — a rating built only from real viewers, with no studio marketing or paid placement. Scores update as more people rate, so the list stays current.

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