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The Scariest Sci-Fi Movies Rated R 

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Updated March 31, 2020 12.5k votes 1.1k voters 49.1k views 145 items

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List of R-Rated sci-fi horror movies, ranked from best to worst with movie trailers when available. This list takes the best R-Rated sci-fi horror movies and pits them against each other to see once and for all what the greatest R-Rated Sci-Fi horror movie of all time is. This list of popular R-Rated sci-fi horror movies includes information like who directed the film, when it was released and which actors starred in the movie. If you think the top R-Rated Sci-Fi horror movie isn't as high as it should be then be sure to vote it up so it can take its rightful place among the other great R-Rated Sci-Fi horror films on this list. If you're trying to find a specific R-Rated Sci-Fi horror film you can search this list and filter to find what you're looking for.

The list you're viewing is made up of many different movies, including Aliens and 28 Days Later.

If you're trying to find out "What are the best R-Rated sci-fi horror movies?" and "What are the most famous R-Rated sci-fi horror movies?" then this list is the perfect resource for you.

Use this list if you're looking for some new sci-fi horror movies that are rated R. Between Netflix, Hulu and other services there are thousands of great sci-fi horror movies rated R, so get out there and start watching.

Re-rank this list to fit your opinions, the share it with your friends, to find out how they would rank it via votes. (145 items)

What kind of directors have worked on R Sci-Fi Horror movies in the past? James Cameron and Ridley Scott both have, as have other great directors.

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list ordered by
1
Alien is listed (or ranked) 1 on the list The Scariest Sci-Fi Movies Rated R
but chickens double d added Sigourney Weaver, John Hurt, Ian Holm

Released: 1979

Directed by: Ridley Scott

Alien is a 1979 science fiction horror film directed by Ridley Scott. The crew of the commercial space tug Nostromo encounter the eponymous Alien, a deadly and aggressive extraterrestrial set ...more
2
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but chickens double d added Kurt Russell, Keith David, John Carpenter

Released: 1982

Directed by: John Carpenter

The Thing is a 1982 American science fiction horror film directed by John Carpenter, written by Bill Lancaster, and starring Kurt Russell. The film's title refers to its primary antagonist: a ...more
3
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Sigourney Weaver, Bill Paxton, Michael Biehn

Released: 1986

Directed by: James Cameron

Aliens is a 1986 American science-fiction action horror film written and directed by James Cameron, produced by his then-wife Gale Anne Hurd, and starring Sigourney Weaver, Carrie Henn, Michael ...more
4
Predator is listed (or ranked) 4 on the list The Scariest Sci-Fi Movies Rated R
but chickens double d added Arnold Schwarzenegger, Jesse Ventura, Carl Weathers

Released: 1987

Directed by: John McTiernan

Predator is a 1987 American science fiction action film directed by John McTiernan and was distributed by 20th Century Fox. It stars Arnold Schwarzenegger, Carl Weathers, Elpidia Carrillo, Bill ...more
5
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Laurence Fishburne, Jason Isaacs, Sam Neill

Released: 1997

Directed by: Paul W. S. Anderson

Event Horizon is a 1997 British-American science fiction horror film. The screenplay was written by Philip Eisner and directed by Paul W. S. Anderson. The film stars Laurence Fishburne and Sam ...more
6
28 Days Later is listed (or ranked) 6 on the list The Scariest Sci-Fi Movies Rated R
Cillian Murphy, Christopher Eccleston, Naomie Harris

Released: 2002

Directed by: Danny Boyle

28 Days Later is a 2002 British post-apocalyptic horror film directed by Danny Boyle. The screenplay was written by Alex Garland. The film stars Cillian Murphy, Naomie Harris, Brendan Gleeson, ...more
7
Terminator 2: Judgment D... is listed (or ranked) 7 on the list The Scariest Sci-Fi Movies Rated R
lucas-webb added Arnold Schwarzenegger, Edward Furlong, Linda Hamilton

Released: 1991

Directed by: James Cameron

Terminator 2: Judgment Day is a 1991 American science fiction action thriller film written, produced and directed by James Cameron. The film stars Arnold Schwarzenegger, Linda Hamilton, Robert ...more
8
The Terminator is listed (or ranked) 8 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Arnold Schwarzenegger, Bill Paxton, Linda Hamilton

Released: 1984

Directed by: James Cameron

The Terminator is a 1984 American science fiction/horror action film directed by James Cameron, written by Cameron and the film's producer Gale Anne Hurd. Schwarzenegger plays the Terminator, a ...more
9
The Fly is listed (or ranked) 9 on the list The Scariest Sci-Fi Movies Rated R
but chickens double d added Geena Davis, Jeff Goldblum, David Cronenberg

Released: 1986

Directed by: David Cronenberg

The Fly is a 1986 American science fiction horror film directed and co-written by David Cronenberg. Produced by Brooksfilms and distributed by 20th Century Fox, the film stars Jeff Goldblum, ...more
10
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Dennis Quaid, Norman Reedus, Ben Foster

Released: 2009

Directed by: Christian Alvart

Pandorum is a German-British 2009 post-apocalyptic science fiction film, with elements of locked room mystery, horror, and survival adventure. The film was directed by Christian Alvart and ...more
11
The Mist is listed (or ranked) 11 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Thomas Jane, Marcia Gay Harden, Laurie Holden

Released: 2007

Directed by: Frank Darabont

The Mist is a 2007 American science fiction horror film based on the 1980 novella of the same name by Stephen King. The film was written and directed by Frank Darabont, who had previously ...more
12
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abyx added Charlize Theron, Michael Fassbender, Idris Elba

Released: 2012

Directed by: Ridley Scott

Prometheus is a 2012 science fiction film directed by Ridley Scott, written by Jon Spaihts and Damon Lindelof, and starring Noomi Rapace, Michael Fassbender, Guy Pearce, Idris Elba, Logan ...more
13
Pitch Black is listed (or ranked) 13 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Vin Diesel, Radha Mitchell, Keith David

Released: 2000

Directed by: David Twohy

Pitch Black is a 2000 science fiction horror film co-written and directed by David Twohy. The film stars Vin Diesel, Radha Mitchell, Cole Hauser, and Keith David. Dangerous man Richard B. ...more
14
The Thing is listed (or ranked) 14 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Mary Elizabeth Winstead, Eric Christian Olsen, Joel Edgerton

Released: 2011

Directed by: Matthijs van Heijningen, Jr.

The Thing is a 2011 science fiction horror film directed by Matthijs van Heijningen Jr. and written by Eric Heisserer based on the novella Who Goes There? by John W. Campbell. It is a prequel to ...more
15
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abyx added Sigourney Weaver, Charles Dance, Paul McGann

Released: 1992

Directed by: David Fincher

Alien 3 is a 1992 American science-fiction horror film and the debut feature film of director David Fincher. The film is the third installment of the Alien film series. The film takes place ...more
16
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Valerie Guyant added Bruce Campbell, Sam Raimi, Ted Raimi

Released: 1981

Directed by: Sam Raimi

This film is a 1981 American horror film written and directed by Sam Raimi and executive produced by Raimi and Bruce Campbell, who also stars alongside Ellen Sandweiss and Betsy Baker. This film ...more
17
Invasion of the Body Sna... is listed (or ranked) 17 on the list The Scariest Sci-Fi Movies Rated R
abyx added Robert Duvall, Jeff Goldblum, Leonard Nimoy

Released: 1978

Directed by: Philip Kaufman

Invasion of the Body Snatchers is a 1978 science fiction thriller directed by Philip Kaufman, and starring Donald Sutherland, Brooke Adams, Veronica Cartwright, Jeff Goldblum and Leonard Nimoy. ...more
18
12 Monkeys is listed (or ranked) 18 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Brad Pitt, Bruce Willis, Christopher Plummer

Released: 1995

Directed by: Terry Gilliam

12 Monkeys, also known as Twelve Monkeys, is a 1995 American science fiction film directed by Terry Gilliam, inspired by Chris Marker's 1962 short film La Jetée, and starring Bruce ...more
19
District 9 is listed (or ranked) 19 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Sharlto Copley, Jed Brophy, Vanessa Haywood

Released: 2009

Directed by: Neill Blomkamp

District 9 is a 2009 science fiction film directed by Neill Blomkamp, released August 13, 2009. It takes place in Johannesburg, South Africa. District 9 is based on Alive in Joburg, a short film ...more
20
Annihilation is listed (or ranked) 20 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Natalie Portman, Jennifer Jason Leigh, Gina Rodriguez

Directed by: Alex Garland

Annihilation is a 2018 science fantasy action horror film directed by Alex Garland, based on the novel by Jeff VanderMeer. A biologist (Natalie Portman) signs up for a dangerous, secret ...more
21
A Quiet Place is listed (or ranked) 21 on the list The Scariest Sci-Fi Movies Rated R
Dan von Stein added John Krasinski, Emily Blunt, Noah Jupe

Released: 2018

Directed by: John Krasinski

A Quiet Place is a 2018 American supernatural horror film directed by John Krasinski. A family living on a farm hides from a supernatural evil attracted to sound by avoiding making sound and ...more
22
Ex Machina is listed (or ranked) 22 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Domhnall Gleeson, Alicia Vikander, Oscar Isaac

Released: 2015

Directed by: Alex Garland

Ex Machina is a 2015 independent science fiction psychological thriller film directed by Alex Garland. A young programmer (Domhnall Gleeson) is selected to participate in a ground-breaking ...more
23
Donnie Darko is listed (or ranked) 23 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Drew Barrymore, Ashley Tisdale, Jake Gyllenhaal

Released: 2001

Directed by: Richard Kelly

Donnie Darko is a 2001 American supernatural drama film written and directed by Richard Kelly and starring Jake Gyllenhaal, Drew Barrymore, Patrick Swayze, Maggie Gyllenhaal, Noah Wyle, Jena ...more
24
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Rose Byrne, Idris Elba, Jeremy Renner

Released: 2007

Directed by: Juan Carlos Fresnadillo

28 Weeks Later is a 2007 British-Spanish post-apocalyptic science fiction horror film, structured as a sequel to the 2002 critical and commercial success, 28 Days Later. 28 Weeks Later was ...more
25
Dark City is listed (or ranked) 25 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Jennifer Connelly, Kiefer Sutherland, Melissa George

Released: 1998

Directed by: Alex Proyas

Dark City is a 1998 neo-noir science fiction film directed by Alex Proyas. The screenplay was written by Proyas, Lem Dobbs and David S. Goyer. The film stars Rufus Sewell, Kiefer Sutherland, ...more