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The Scariest Sci-Fi Movies Rated R  

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9.6k votes 947 voters 42.5k views 142 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. (142 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.

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
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
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
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
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
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
The Terminator is listed (or ranked) 6 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Arnold Schwarzenegger, Bill Paxton, Linda Hamilton
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
7
The Mist is listed (or ranked) 7 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Thomas Jane, Marcia Gay Harden, Laurie Holden
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
8
28 Days Later is listed (or ranked) 8 on the list The Scariest Sci-Fi Movies Rated R
Cillian Murphy, Christopher Eccleston, Naomie Harris
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
9
Terminator 2: Judgment Day is listed (or ranked) 9 on the list The Scariest Sci-Fi Movies Rated R
lucas-webb added Arnold Schwarzenegger, Edward Furlong, Linda Hamilton
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
10
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Dennis Quaid, Norman Reedus, Ben Foster
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 Fly is listed (or ranked) 11 on the list The Scariest Sci-Fi Movies Rated R
but chickens double d added Geena Davis, Jeff Goldblum, 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
12
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abyx added Charlize Theron, Michael Fassbender, Idris Elba
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
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
Invasion of the Body Snatchers is listed (or ranked) 14 on the list The Scariest Sci-Fi Movies Rated R
abyx added Robert Duvall, Jeff Goldblum, Leonard Nimoy
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
15
District 9 is listed (or ranked) 15 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Sharlto Copley, Jed Brophy, Vanessa Haywood
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
16
Donnie Darko is listed (or ranked) 16 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Drew Barrymore, Ashley Tisdale, Jake Gyllenhaal
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
17
Upgrade is listed (or ranked) 17 on the list The Scariest Sci-Fi Movies Rated R
Dan von Stein added Logan Marshall-Green, Betty Gabriel, Harrison Gilbertson
Upgrade is a 2018 Australian science fiction action horror film directed by Leigh Whannell. A self-identified technophobe (Logan Marshall-Green) in a near-future world uses an experimental ...more
18
A Quiet Place is listed (or ranked) 18 on the list The Scariest Sci-Fi Movies Rated R
Dan von Stein added John Krasinski, Emily Blunt, Noah Jupe
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
19
Annihilation is listed (or ranked) 19 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Natalie Portman, Jennifer Jason Leigh, Gina Rodriguez
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
20
Dark City is listed (or ranked) 20 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Jennifer Connelly, Kiefer Sutherland, Melissa George
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
21
Fire in the Sky is listed (or ranked) 21 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added James Garner, Robert Patrick, Peter Berg
This film is a 1993 science fiction horror drama film based on an alleged extraterrestrial encounter, directed by Robert Lieberman, and written by Tracy Tormé based on Travis Walton's ...more
22
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daniel.vonstein added Nicole de Boer, Julian Richings, David Hewlett
Cube is a 1997 Canadian science fiction psychological horror film, directed and co-written by Vincenzo Natali. The film was a successful product of the Canadian Film Centre's First Feature
23
Jacob's Ladder is listed (or ranked) 23 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Macaulay Culkin, Tim Robbins, Jason Alexander
Jacob's Ladder is a 1990 American psychological horror film directed by Adrian Lyne, written and produced by Bruce Joel Rubin and starring Tim Robbins, Elizabeth Peña and Danny Aiello. ...more
24
12 Monkeys is listed (or ranked) 24 on the list The Scariest Sci-Fi Movies Rated R
daniel.vonstein added Brad Pitt, Bruce Willis, Christopher Plummer
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
25
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abyx added Erika Eleniak, Shawnee Smith, Julie McCullough
The Blob is a 1988 monster horror film written by Chuck Russell and Frank Darabont, and directed by Russell. It stars Kevin Dillon, Shawnee Smith, Donovan Leitch, Jeffrey DeMunn, Candy Clark and ...more