Movies Like Phase IV
If you loved Phase IV's Horror and Science Fiction storytelling, these films deliver a similar experience — carefully selected for tone, themes, and emotional depth. Each pick includes where to watch it right now.
★ Top Picks
Them!
As a result of nuclear testing, gigantic, ferocious mutant ants appear in the American desert southwest, and a father-daughter team of entomologists join forces with the state police officer who first discovers their existence, an FBI agent and, eventually, the US Army to eradicate the menace, before it spreads across the continent — and the world.
Tarantula
A rogue scientist near a small desert town arouses the suspicion of the town's doctor when his lab assistant is found dead from a case of acromegaly, which took only four days to develop. As the doctor investigates, aided by the scientist's new female assistant, they discover that something is devouring local cattle and humans in increasingly large quantities.
Margaux
As a group of seniors celebrate their final college days at a smart house, the house's highly advanced AI system, Margaux, begins to take on a deadly presence of her own. A carefree weekend of partying turns into a dystopian nightmare as they realize Margaux's plans to eliminate her tenants one way or another. Time begins to run out as the group desperately tries to survive and outsmart the smart home.
Assimilate
Three friends making a web series about their town discover that their neighbors are being killed and replaced by creatures who are perfect copies of their victims.
The Return
After the death of his father, a brilliant college student returns to his family home where he learns that the horrors from his childhood aren't as dead and gone as he once thought.
The Hidden
When average, law-abiding citizens suddenly turn to a life of hedonistic behavior and violent crime, Detective Tom Beck is tasked with helping young FBI agent Lloyd Gallagher determine the cause.
Nope
Residents in a lonely gulch of inland California bear witness to an uncanny, chilling discovery.
More Movies Like Phase IV
Phoenix Forgotten
Twenty years after three teenagers disappeared in the wake of mysterious lights appearing above Phoenix, Arizona, unseen footage from that night has been discovered, chronicling the final hours of their fateful expedition.
The Car
The Utah community of Santa Ynez is being terrorized by a mysterious black coupe that appears out of nowhere and begins running people down. After the car kills off the town sheriff, Captain Wade Parent is determined to stop the murderous driver.
Slither
A small town is taken over by an alien plague, turning residents into zombies and all forms of mutant monsters.
Subservience
With his wife out sick, a struggling father brings home a lifelike AI, only to have his self-aware new help want everything her new family has to offer... Like the affection of her owner and she'll kill to get it.
The Fly
Industrialist François Delambre is called late at night by his sister-in-law, Helene, who tells him that she has just killed her husband. Reluctant at first, she eventually explains to the police that he invented a matter transportation apparatus and, while experimenting on himself, a fly entered the chamber.
Man-Made Monster
Mad scientist turns a man into an electrically-controlled monster to do his bidding.
Die Alone
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.
Piglet
On Kate's 21st birthday camping trip, her friends encounter Piglet, a monstrous human-pig hybrid who brutally murders one of them. They uncover Piglet's origins and Kate must confront her past to survive the relentless killer.
Piranha
When flesh-eating piranhas are accidentally released into a summer resort's rivers, the guests become their next meal.
Don't Let Go
A detective suffering from a personal loss receives a call from his recently deceased niece. Being able to communicate across time, the two work together to try and stop the crime before it occurs.
Totally Killer
When the infamous "Sweet Sixteen Killer" returns 35 years after his first murder spree to claim another victim, 17-year-old Jamie accidentally travels back in time to 1987, determined to stop the killer before he can start.
Cold Storage
When a mutating, highly contagious fungus escapes a sealed facility, two employees – joined by a grizzled bioterror operative – must survive the wildest night shift ever to save humanity from extinction.
Why These Movies Are Similar
These recommendations share core qualities with Phase IV (1974): Horror and Science Fiction themes, similar narrative structure, and comparable emotional depth. NoBadPicks uses a combination of TMDB collaborative filtering, genre matching, and AI analysis to surface films most likely to resonate with fans of Phase IV.
See full details for Phase IV (1974)