Special Report

Best R-Rated Sci-Fi Movies of All Time

Courtesy of TriStar Pictures

Sci-fi films often concern themselves with advanced technologies and their effects on society. Artificial intelligence, time travel, and mass surveillance are just a few of the themes explored in the best sci-fi movies – many of which are rated R for graphic depictions of violence and sometimes sexual situations. (These are the best R-rated movies of all time.)

To determine the best R-rated sci-fi movies, 24/7 Tempo developed an index using average ratings on IMDb, an online movie database owned by Amazon, and a combination of audience scores and Tomatometer scores on Rotten Tomatoes, an online movie and TV review aggregator, as of early May 2023, weighting all ratings equally. We considered only movies with at least 10,000 audience votes on IMDb. Directorial credits are from IMDb.

In addition to futuristic technologies, these movies also explore themes including aliens, psychic abilities, fascism, and dystopian futures. Well-known genre directors including John Carpenter, David Cronenberg, Ridley Scott, and Terry Gilliam appear on the list. Several of the films have evolved into franchises, including “Alien,” “The Terminator,” and “The Matrix.” (Check out the worst movie from every major franchise.)

Click here to see the best R-rated sci-fi movies of all time

Courtesy of Paramount Pictures

30. The Dead Zone (1983)
> IMDb user rating: 7.2/10 (66,295 votes)
> Rotten Tomatoes audience score: 76% (36,485 votes)
> Rotten Tomatoes Tomatometer score: 90% (48 reviews)
> Directed by: David Cronenberg

After waking from a five-year coma, a man realizes that he has psychic abilities to see into the past and the future. When he begins using his powers to try to do good in the world, he discovers that fate may indeed be malleable.

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Courtesy of Well Go USA Entertainment

29. Freaks (2018)
> IMDb user rating: 6.7/10 (30,802 votes)
> Rotten Tomatoes audience score: 86% (152 votes)
> Rotten Tomatoes Tomatometer score: 88% (84 reviews)
> Directed by: Adam Stein & Zach Lipovsky

Seven-year-old Chloe has never been outside. Stuck in a decrepit house with her paranoid father and strange visions of a ghostly woman in her closet, she longs to experience the world – but when she finally escapes, she learns why she’s been kept in hiding.

Courtesy of Sony Pictures Classics

28. The City of Lost Children (1995)
> IMDb user rating: 7.5/10 (66,670 votes)
> Rotten Tomatoes audience score: 90% (65,843 votes)
> Rotten Tomatoes Tomatometer score: 79% (56 reviews)
> Directed by: Marc Caro & Jean-Pierre Jeunet

When orphans in a French port city begin to go missing, a kindhearted carnival strong-man teams up with a young girl to rescue his little brother, and discovers the wicked plot behind the kidnappings.

Courtesy of Paramount Pictures

27. Face/Off (1997)
> IMDb user rating: 7.2/10 (360,443 votes)
> Rotten Tomatoes audience score: 82% (450,429 votes)
> Rotten Tomatoes Tomatometer score: 92% (87 reviews)
> Directed by: John Woo

FBI Agent Archer undergoes a facial transplant to assume the identity of criminal mastermind Castor Troy, who has planted a bomb in Los Angeles. As soon as he finds out where the bomb is, Troy shows up wearing Archer’s face, seeking revenge.

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Courtesy of Warner Bros. Pictures

26. V for Vendetta (2005)
> IMDb user rating: 8.1/10 (1,066,529 votes)
> Rotten Tomatoes audience score: 90% (904,466 votes)
> Rotten Tomatoes Tomatometer score: 73% (256 reviews)
> Directed by: James McTeigue

As a fascist regime controls the UK, executing those it deems undesirable, a masked anarchist attempts to overthrow the government with the help of a young woman who was orphaned by the system.

Courtesy of Sony Pictures Classics

25. Take Shelter (2011)
> IMDb user rating: 7.4/10 (97,354 votes)
> Rotten Tomatoes audience score: 81% (25,822 votes)
> Rotten Tomatoes Tomatometer score: 92% (166 reviews)
> Directed by: Jeff Nichols

When a small-town man begins having strange dreams and visions of the apocalypse, he alienates his friends – and builds a bomb shelter in his backyard to protect his family.

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Courtesy of Arrow Films

24. Donnie Darko (2001)
> IMDb user rating: 8.0/10 (763,860 votes)
> Rotten Tomatoes audience score: 80% (30,984,568 votes)
> Rotten Tomatoes Tomatometer score: 86% (118 reviews)
> Directed by: Richard Kelly

After a troubled teen begins hallucinating a grotesque rabbit figure who tells him that the world will end in less than a month, he commits a series of strange crimes and develops an obsession with time travel.

Courtesy of Twentieth Century Fox

23. Predator (1987)
> IMDb user rating: 7.8/10 (387,266 votes)
> Rotten Tomatoes audience score: 87% (389,324 votes)
> Rotten Tomatoes Tomatometer score: 82% (49 reviews)
> Directed by: John McTiernan

When an elite special forces team sets out on a rescue mission in the rainforest of Guatemala, they soon discover that they are being hunted by an alien foe with preternatural skills.

Courtesy of Sony Pictures Releasing

22. Looper (2012)
> IMDb user rating: 7.4/10 (550,438 votes)
> Rotten Tomatoes audience score: 82% (180,475 votes)
> Rotten Tomatoes Tomatometer score: 93% (269 reviews)
> Directed by: Rian Johnson

In a future where every person is tracked, disposing of bodies is impossible; so sending them back in time to be assassinated has become the norm. But when assassins has lived out their purpose, their future selves come to get rid of the evidence.

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21. Upgrade (2018)
> IMDb user rating: 7.5/10 (171,876 votes)
> Rotten Tomatoes audience score: 87% (6,048 votes)
> Rotten Tomatoes Tomatometer score: 88% (193 reviews)
> Directed by: Leigh Whannell

An auto mechanic who has been paralyzed by muggers who kill his wife accepts an experimental implant that allows him to regain use of his body, and begins hunting down his assailants.

Courtesy of Orion Pictures

20. RoboCop (1987)
> IMDb user rating: 7.6/10 (235,958 votes)
> Rotten Tomatoes audience score: 84% (226,534 votes)
> Rotten Tomatoes Tomatometer score: 90% (68 reviews)
> Directed by: Paul Verhoeven

When a Detroit police officer is killed, a tech corporation turns his body into a cyborg crime-fighting machine. When traces of his memories re-emerge, however, he realizes that his masters may have been behind his untimely death.

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Courtesy of Sony Pictures Releasing

19. District 9 (2009)
> IMDb user rating: 7.9/10 (654,962 votes)
> Rotten Tomatoes audience score: 82% (1,178,687 votes)
> Rotten Tomatoes Tomatometer score: 90% (314 reviews)
> Directed by: Neill Blomkamp

Twenty years after alien refugees landed in South Africa and were confined to an internment camp, two of the insectoid creatures attempt to escape their slum-like conditions on earth and return to their home planet.

Courtesy of Twentieth Century Fox

18. The Fly (1986)
> IMDb user rating: 7.6/10 (167,978 votes)
> Rotten Tomatoes audience score: 83% (90,069 votes)
> Rotten Tomatoes Tomatometer score: 93% (68 reviews)
> Directed by: David Cronenberg

In this update of the 1958 Vincent Price-starring original, a brilliant scientist has created a teleportation device and decides to test the machine on himself. But a fly enters the telepod with him, and his experiment goes horribly wrong.

Courtesy of Paramount Pictures

17. Seconds (1966)
> IMDb user rating: 7.7/10 (18,912 votes)
> Rotten Tomatoes audience score: 87% (4,496 votes)
> Rotten Tomatoes Tomatometer score: 89% (35 reviews)
> Directed by: John Frankenheimer

Disillusioned by his empty life, a New York banker decides to undergo an operation to change his identity and give him a chance to start over as an artist. The new life he looked forward to isn’t all he’d hoped it would be.

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Courtesy of Universal Pictures

16. Children of Men (2006)
> IMDb user rating: 7.9/10 (479,501 votes)
> Rotten Tomatoes audience score: 85% (531,198 votes)
> Rotten Tomatoes Tomatometer score: 92% (255 reviews)
> Directed by: Alfonso Cuarón

In a dystopian future where humans are no longer fertile and society has all but collapsed, a civil servant is tasked with escorting a young immigrant woman on a dangerous journey to the coast.

Courtesy of GEM Entertainment

15. Her (2013)
> IMDb user rating: 8.0/10 (567,662 votes)
> Rotten Tomatoes audience score: 82% (101,810 votes)
> Rotten Tomatoes Tomatometer score: 94% (283 reviews)
> Directed by: Spike Jonze

A lonely writer finds love and companionship in his new artificially intelligent virtual assistant as he navigates a painful divorce in an increasingly alienating futuristic society.

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Courtesy of Sony Pictures Classics

14. Moon (2009)
> IMDb user rating: 7.8/10 (345,533 votes)
> Rotten Tomatoes audience score: 89% (100,903 votes)
> Rotten Tomatoes Tomatometer score: 90% (194 reviews)
> Directed by: Duncan Jones

Near the end of a three-year stint as the sole worker on a lunar station, Sam wants only to get back to earth and see his wife and daughter. But after a near fatal accident, he begins to doubt his identity and the intentions of his AI assistant.

Courtesy of Universal Pictures

13. 12 Monkeys (1995)
> IMDb user rating: 8.0/10 (595,919 votes)
> Rotten Tomatoes audience score: 88% (391,252 votes)
> Rotten Tomatoes Tomatometer score: 89% (72 reviews)
> Directed by: Terry Gilliam

Years after a virus has wiped out most of the human population, a convict is sent back in time to discover the pathogen’s origin and help scientists avert the disaster.

Courtesy of A24

12. Everything Everywhere All at Once (2022)
> IMDb user rating: 7.9/10 (436,874 votes)
> Rotten Tomatoes audience score: 86% (2,500 votes)
> Rotten Tomatoes Tomatometer score: 94% (392 reviews)
> Directed by: Daniel Kwan & Daniel Scheinert

When a middle-aged Chinese immigrant on the verge of divorce is audited by the IRS, her tedious life erupts into unlimited parallel universes that contain all the lives she could have lived.

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Courtesy of Universal Pictures

11. The Thing (1982)
> IMDb user rating: 8.1/10 (391,164 votes)
> Rotten Tomatoes audience score: 92% (132,442 votes)
> Rotten Tomatoes Tomatometer score: 86% (69 reviews)
> Directed by: John Carpenter

When a sled dog shows up at an Antarctic research station and is revealed to carry an alien life form that can take over other creatures’ bodies, pandemonium erupts, as anyone could be the next unwitting host.

Courtesy of Warner Bros.

10. The Matrix (1999)
> IMDb user rating: 8.7/10 (1,759,161 votes)
> Rotten Tomatoes audience score: 85% (33,324,202 votes)
> Rotten Tomatoes Tomatometer score: 88% (155 reviews)
> Directed by: Lana & Lilly Wachowski

After discovering that the world he thinks he knows is only a simulation, a hacker joins a group of rebels intent on freeing the human race from their enslavement by intelligent machines.

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Courtesy of Warner Bros.

9. Blade Runner (1982)
> IMDb user rating: 8.1/10 (721,985 votes)
> Rotten Tomatoes audience score: 91% (338,132 votes)
> Rotten Tomatoes Tomatometer score: 90% (121 reviews)
> Directed by: Ridley Scott

Based on the classic novel, this film follows an L.A. cop who is tasked with hunting down a group of androids who have escaped a space work colony and are attempting to blend in as humans on earth.

Courtesy of Warner Bros.

8. A Clockwork Orange (1971)
> IMDb user rating: 8.3/10 (785,984 votes)
> Rotten Tomatoes audience score: 93% (437,137 votes)
> Rotten Tomatoes Tomatometer score: 86% (73 reviews)
> Directed by: Stanley Kubrick

Set in a shocking futuristic Britain, this dystopian film portrays a young gang on a violent, drug-fueled crime spree and the subsequent incarceration and attempted rehabilitation of its maniacal leader.

Courtesy of Twentieth Century Fox

7. Logan (2017)
> IMDb user rating: 8.1/10 (688,052 votes)
> Rotten Tomatoes audience score: 90% (93,272 votes)
> Rotten Tomatoes Tomatometer score: 93% (423 reviews)
> Directed by: James Mangold

Wolverine and Professor X live a quiet life in hiding in Mexico; but when a young mutant named Laura shows up, Logan must decide if he is willing to help her reach a safe haven that may not even exist.

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Courtesy of Universal Pictures

6. Brazil (1985)
> IMDb user rating: 7.9/10 (194,716 votes)
> Rotten Tomatoes audience score: 90% (103,103 votes)
> Rotten Tomatoes Tomatometer score: 98% (49 reviews)
> Directed by: Terry Gilliam

In a future that runs on comically inefficient technologies, a menial government worker discovers that an innocent man has been wrongfully arrested and killed – but his attempts to right the wrong put his own life in danger.

Courtesy of Orion Pictures

5. The Terminator (1984)
> IMDb user rating: 8.0/10 (820,969 votes)
> Rotten Tomatoes audience score: 89% (776,923 votes)
> Rotten Tomatoes Tomatometer score: 100% (65 reviews)
> Directed by: James Cameron

When an indestructible cyborg is sent from the future to kill an unsuspecting woman whose unborn son will one day save humanity from extinction, a soldier is tasked with protecting her life at all costs.

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Courtesy of Focus Features

4. Eternal Sunshine of the Spotless Mind (2004)
> IMDb user rating: 8.3/10 (948,653 votes)
> Rotten Tomatoes audience score: 94% (571,910 votes)
> Rotten Tomatoes Tomatometer score: 92% (250 reviews)
> Directed by: Michel Gondry

After a charmed but volatile relationship, Joel and Clementine each decide to undergo a process that will erase their memories of one another. As Joel’s mind is wiped clean, though, he has second thoughts and attempts to hold onto the remnants of his love.

Courtesy of TriStar Pictures

3. Terminator 2: Judgment Day (1991)
> IMDb user rating: 8.5/10 (1,033,964 votes)
> Rotten Tomatoes audience score: 94% (749,360 votes)
> Rotten Tomatoes Tomatometer score: 93% (84 reviews)
> Directed by: James Cameron

The sequel to “Terminator” follows wanted terrorist Sarah Connor and her son John as they are pursued by a shapeshifting, weaponized robot who has been sent to kill John before he grows into an important resistance leader.

Courtesy of Twentieth Century Fox

2. Aliens (1986)
> IMDb user rating: 8.3/10 (678,602 votes)
> Rotten Tomatoes audience score: 94% (430,019 votes)
> Rotten Tomatoes Tomatometer score: 97% (77 reviews)
> Directed by: James Cameron

The sole survivor of an alien attack on her spaceship, Ellen Ripley is awoken from suspended animation and tasked with investigating a lunar colony that has fallen out of communication with Earth.

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Courtesy of Twentieth Century Fox

1. Alien (1979)
> IMDb user rating: 8.4/10 (823,459 votes)
> Rotten Tomatoes audience score: 94% (460,436 votes)
> Rotten Tomatoes Tomatometer score: 98% (126 reviews)
> Directed by: Ridley Scott

When the crew of a commercial spaceship picks up a mysterious signal coming from a distant moon, they descend to investigate and discover an alien lifeform that threatens them all.

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