Best R-Rated Sci-Fi Movies of All Time

Source: 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.

Source: 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.

Source: 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.

Source: 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.

Source: 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.

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