Special Report

Best R-Rated Sci-Fi Movies of All Time

Source: 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.

Source: 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.

Source: 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.

Source: 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.

Source: 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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