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1. Avengers: Infinity War (2018)

PG-13 | 149 min | Action, Adventure, Fantasy

8.8
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    1 2 3 4 5 6 7 8 9 10 8.8/10 X  
68 Metascore

The Avengers and their allies must be willing to sacrifice all in an attempt to defeat the powerful Thanos before his blitz of devastation and ruin puts an end to the universe.

Directors: Anthony Russo, Joe Russo | Stars: Robert Downey Jr., Chris Hemsworth, Mark Ruffalo, Chris Evans

Votes: 328,478 | Gross: $566.36M

2. The X-Files (1993– )

TV-14 | 45 min | Drama, Mystery, Sci-Fi

8.7
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    1 2 3 4 5 6 7 8 9 10 8.7/10 X  

Two FBI agents, Fox Mulder the believer and Dana Scully the skeptic, investigate the strange and unexplained, while hidden forces work to impede their efforts.

Stars: David Duchovny, Gillian Anderson, Mitch Pileggi, William B. Davis

Votes: 173,896

3. Batman v Superman: Dawn of Justice (2016)

PG-13 | 151 min | Action, Adventure, Fantasy

6.6
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    1 2 3 4 5 6 7 8 9 10 6.6/10 X  
44 Metascore

Fearing that the actions of Superman are left unchecked, Batman takes on the Man of Steel, while the world wrestles with what kind of a hero it really needs.

Director: Zack Snyder | Stars: Ben Affleck, Henry Cavill, Amy Adams, Jesse Eisenberg

Votes: 532,781 | Gross: $330.36M

4. 2001: A Space Odyssey (1968)

G | 149 min | Adventure, Sci-Fi

8.3
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    1 2 3 4 5 6 7 8 9 10 8.3/10 X  
82 Metascore

Humanity finds a mysterious, obviously artificial object buried beneath the Lunar surface and, with the intelligent computer H.A.L. 9000, sets off on a quest.

Director: Stanley Kubrick | Stars: Keir Dullea, Gary Lockwood, William Sylvester, Daniel Richter

Votes: 502,184 | Gross: $56.95M

5. Beyond Skyline (2017)

R | 106 min | Action, Adventure, Horror

5.3
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    1 2 3 4 5 6 7 8 9 10 5.3/10 X  
46 Metascore

A tough-as-nails detective embarks on a relentless pursuit to free his son from a nightmarish alien warship.

Director: Liam O'Donnell | Stars: Frank Grillo, Bojana Novakovic, Jonny Weston, Callan Mulvey

Votes: 10,582 | Gross: $0.99M

6. Arrival (II) (2016)

PG-13 | 116 min | Drama, Mystery, Sci-Fi

7.9
Rate this
    1 2 3 4 5 6 7 8 9 10 7.9/10 X  
81 Metascore

A linguist is recruited by the military to communicate with alien lifeforms after twelve mysterious spacecrafts land around the world.

Director: Denis Villeneuve | Stars: Amy Adams, Jeremy Renner, Forest Whitaker, Michael Stuhlbarg

Votes: 448,672 | Gross: $100.55M

7. Green Lantern (2011)

PG-13 | 114 min | Action, Adventure, Sci-Fi

5.6
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    1 2 3 4 5 6 7 8 9 10 5.6/10 X  
39 Metascore

Reckless test pilot Hal Jordan is granted an alien ring that bestows him with otherworldly powers that inducts him into an intergalactic police force, the Green Lantern Corps.

Director: Martin Campbell | Stars: Ryan Reynolds, Blake Lively, Peter Sarsgaard, Mark Strong

Votes: 242,154 | Gross: $116.60M

8. Man of Steel (2013)

PG-13 | 143 min | Action, Adventure, Fantasy

7.1
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    1 2 3 4 5 6 7 8 9 10 7.1/10 X  
55 Metascore

Clark Kent, one of the last of an extinguished race disguised as an unremarkable human, is forced to reveal his identity when Earth is invaded by an army of survivors who threaten to bring the planet to the brink of destruction.

Director: Zack Snyder | Stars: Henry Cavill, Amy Adams, Michael Shannon, Diane Lane

Votes: 613,792 | Gross: $291.05M

9. Spaceballs (1987)

PG | 96 min | Adventure, Comedy, Sci-Fi

7.1
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    1 2 3 4 5 6 7 8 9 10 7.1/10 X  
46 Metascore

Planet Spaceballs' President Skroob sends Lord Dark Helmet to steal planet Druidia's abundant supply of air to replenish their own, and only Lone Starr can stop them.

Director: Mel Brooks | Stars: Mel Brooks, John Candy, Rick Moranis, Bill Pullman

Votes: 151,409 | Gross: $38.12M

10. Transformers (2007)

PG-13 | 144 min | Action, Adventure, Sci-Fi

7.1
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    1 2 3 4 5 6 7 8 9 10 7.1/10 X  
61 Metascore

An ancient struggle between two Cybertronian races, the heroic Autobots and the evil Decepticons, comes to Earth, with a clue to the ultimate power held by a teenager.

Director: Michael Bay | Stars: Shia LaBeouf, Megan Fox, Josh Duhamel, Tyrese Gibson

Votes: 551,271 | Gross: $319.07M

11. Earth vs. the Flying Saucers (1956)

Unrated | 83 min | Action, Sci-Fi

6.4
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    1 2 3 4 5 6 7 8 9 10 6.4/10 X  

Extraterrestrials traveling in high-tech flying saucers contact a scientist as part of a plan to enslave the inhabitants of Earth.

Director: Fred F. Sears | Stars: Hugh Marlowe, Joan Taylor, Donald Curtis, Morris Ankrum

Votes: 5,928

12. The Thing (1982)

R | 109 min | Horror, Mystery, Sci-Fi

8.1
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    1 2 3 4 5 6 7 8 9 10 8.1/10 X  
57 Metascore

A crew in Antarctica finds a neighboring camp destroyed and its crew dead. Whatever killed them is nowhere to be found, unless it's hidden in plain sight.

Director: John Carpenter | Stars: Kurt Russell, Wilford Brimley, Keith David, Richard Masur

Votes: 307,162 | Gross: $13.78M

13. War of the Worlds (2005)

PG-13 | 116 min | Adventure, Sci-Fi, Thriller

6.5
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    1 2 3 4 5 6 7 8 9 10 6.5/10 X  
73 Metascore

As Earth is invaded by alien tripod fighting machines, one family fights for survival.

Director: Steven Spielberg | Stars: Tom Cruise, Dakota Fanning, Tim Robbins, Miranda Otto

Votes: 368,966 | Gross: $234.28M

14. 10 Cloverfield Lane (2016)

PG-13 | 103 min | Drama, Horror, Mystery

7.2
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    1 2 3 4 5 6 7 8 9 10 7.2/10 X  
76 Metascore

After getting in a car accident, a woman is held in a shelter with two men, who claim the outside world is affected by a widespread chemical attack.

Director: Dan Trachtenberg | Stars: John Goodman, Mary Elizabeth Winstead, John Gallagher Jr., Douglas M. Griffin

Votes: 236,310 | Gross: $71.90M

15. Children of Men (2006)

R | 109 min | Drama, Sci-Fi, Thriller

7.9
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    1 2 3 4 5 6 7 8 9 10 7.9/10 X  
84 Metascore

In 2027, in a chaotic world in which women have become somehow infertile, a former activist agrees to help transport a miraculously pregnant woman to a sanctuary at sea.

Director: Alfonso Cuarón | Stars: Julianne Moore, Clive Owen, Chiwetel Ejiofor, Michael Caine

Votes: 404,189 | Gross: $35.55M

16. Men in Black (1997)

PG-13 | 98 min | Adventure, Comedy, Family

7.3
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    1 2 3 4 5 6 7 8 9 10 7.3/10 X  
71 Metascore

A police officer joins a secret organization that polices and monitors extraterrestrial interactions on Earth.

Director: Barry Sonnenfeld | Stars: Tommy Lee Jones, Will Smith, Linda Fiorentino, Vincent D'Onofrio

Votes: 450,700 | Gross: $250.69M

17. Teenage Mutant Ninja Turtles: Out of the Shadows (2016)

PG-13 | 112 min | Action, Adventure, Comedy

6.0
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    1 2 3 4 5 6 7 8 9 10 6/10 X  
40 Metascore

After facing Shredder, who has joined forces with mad scientist Baxter Stockman and henchmen Bebop and Rocksteady to take over the world, the Turtles must confront an even greater nemesis: the notorious Krang.

Director: Dave Green | Stars: Megan Fox, Will Arnett, Tyler Perry, Laura Linney

Votes: 70,472 | Gross: $82.05M

18. Knowing (2009)

PG-13 | 121 min | Drama, Mystery, Sci-Fi

6.2
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    1 2 3 4 5 6 7 8 9 10 6.2/10 X  
41 Metascore

M.I.T. professor John Koestler links a mysterious list of numbers from a time capsule to past and future disasters and sets out to prevent the ultimate catastrophe.

Director: Alex Proyas | Stars: Nicolas Cage, Chandler Canterbury, Rose Byrne, Lara Robinson

Votes: 201,762 | Gross: $79.96M

19. The 5th Wave (2016)

PG-13 | 112 min | Action, Adventure, Sci-Fi

5.2
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    1 2 3 4 5 6 7 8 9 10 5.2/10 X  
33 Metascore

Four waves of increasingly deadly alien attacks have left most of Earth decimated. Cassie is on the run, desperately trying to save her younger brother.

Director: J Blakeson | Stars: Chloë Grace Moretz, Matthew Zuk, Gabriela Lopez, Bailey Anne Borders

Votes: 83,576 | Gross: $34.91M

20. Independence Day: Resurgence (2016)

PG-13 | 120 min | Action, Adventure, Sci-Fi

5.2
Rate this
    1 2 3 4 5 6 7 8 9 10 5.2/10 X  
32 Metascore

Two decades after the first Independence Day invasion, Earth is faced with a new extra-Solar threat. But will mankind's new space defenses be enough?

Director: Roland Emmerich | Stars: Liam Hemsworth, Jeff Goldblum, Bill Pullman, Maika Monroe

Votes: 144,815 | Gross: $103.14M

21. Signs (2002)

PG-13 | 106 min | Drama, Mystery, Sci-Fi

6.7
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    1 2 3 4 5 6 7 8 9 10 6.7/10 X  
59 Metascore

A family living on a farm finds mysterious crop circles in their fields which suggests something more frightening to come.

Director: M. Night Shyamalan | Stars: Mel Gibson, Joaquin Phoenix, Rory Culkin, Abigail Breslin

Votes: 299,544 | Gross: $227.97M

22. Independence Day (1996)

PG-13 | 145 min | Action, Adventure, Sci-Fi

7.0
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    1 2 3 4 5 6 7 8 9 10 7/10 X  
59 Metascore

The aliens are coming and their goal is to invade and destroy Earth. Fighting superior technology, mankind's best weapon is the will to survive.

Director: Roland Emmerich | Stars: Will Smith, Bill Pullman, Jeff Goldblum, Mary McDonnell

Votes: 473,849 | Gross: $306.17M

23. Mars Attacks! (1996)

PG-13 | 106 min | Comedy, Sci-Fi

6.3
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    1 2 3 4 5 6 7 8 9 10 6.3/10 X  
52 Metascore

Earth is invaded by Martians with unbeatable weapons and a cruel sense of humor.

Director: Tim Burton | Stars: Jack Nicholson, Pierce Brosnan, Sarah Jessica Parker, Annette Bening

Votes: 188,519 | Gross: $37.77M

24. Paul (2011)

R | 104 min | Adventure, Comedy, Sci-Fi

7.0
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    1 2 3 4 5 6 7 8 9 10 7/10 X  
57 Metascore

Two English comic book geeks traveling across the U.S. encounter an alien outside Area 51.

Director: Greg Mottola | Stars: Simon Pegg, Nick Frost, Seth Rogen, Mia Stallard

Votes: 211,136 | Gross: $37.41M

25. Men in Black II (2002)

PG-13 | 88 min | Action, Adventure, Comedy

6.1
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    1 2 3 4 5 6 7 8 9 10 6.1/10 X  
49 Metascore

Agent J needs help so he is sent to find Agent K and restore his memory.

Director: Barry Sonnenfeld | Stars: Tommy Lee Jones, Will Smith, Rip Torn, Lara Flynn Boyle

Votes: 293,320 | Gross: $190.42M

26. Stalker (1979)

Not Rated | 162 min | Drama, Sci-Fi

8.1
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    1 2 3 4 5 6 7 8 9 10 8.1/10 X  

A guide leads two men through an area known as the Zone to find a room that grants wishes.

Director: Andrei Tarkovsky | Stars: Alisa Freyndlikh, Aleksandr Kaydanovskiy, Anatoliy Solonitsyn, Nikolay Grinko

Votes: 88,700 | Gross: $0.23M

27. The 4400 (2004–2007)

TV-14 | 43 min | Sci-Fi, Drama, Mystery

7.4
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    1 2 3 4 5 6 7 8 9 10 7.4/10 X  

As the reappearance of 4,400 missing persons on a single day confounds the global community, federal agents on the case slowly discover the ways in which the victims have been changed.

Stars: Jacqueline McKenzie, Joel Gretsch, Patrick John Flueger, Conchita Campbell

Votes: 38,899

28. Close Encounters of the Third Kind (1977)

PG | 138 min | Drama, Sci-Fi

7.7
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    1 2 3 4 5 6 7 8 9 10 7.7/10 X  
90 Metascore

After an accidental encounter with otherworldly vessels, an ordinary man follows a series of psychic clues to the first scheduled meeting between representatives of Earth and visitors from the cosmos.

Director: Steven Spielberg | Stars: Richard Dreyfuss, François Truffaut, Teri Garr, Melinda Dillon

Votes: 158,460 | Gross: $132.09M

29. Cowboys & Aliens (2011)

PG-13 | 119 min | Action, Sci-Fi, Thriller

6.0
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    1 2 3 4 5 6 7 8 9 10 6/10 X  
50 Metascore

A spaceship arrives in Arizona, 1873, to take over the Earth, starting with the Wild West region. A posse of cowboys and natives are all that stand in their way.

Director: Jon Favreau | Stars: Daniel Craig, Harrison Ford, Olivia Wilde, Abigail Spencer

Votes: 188,474 | Gross: $100.24M

30. The Day the Earth Stood Still (2008)

PG-13 | 104 min | Drama, Sci-Fi, Thriller

5.5
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    1 2 3 4 5 6 7 8 9 10 5.5/10 X  
40 Metascore

A remake of the 1951 classic science fiction film about an alien visitor and his giant robot counterpart who visit Earth.

Director: Scott Derrickson | Stars: Keanu Reeves, Jennifer Connelly, Kathy Bates, Jaden Smith

Votes: 150,172 | Gross: $79.37M

31. Monsters vs. Aliens (2009)

PG | 94 min | Animation, Action, Adventure

6.5
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    1 2 3 4 5 6 7 8 9 10 6.5/10 X  
56 Metascore

A woman transformed into a giant after she is struck by a meteorite on her wedding day becomes part of a team of monsters sent in by the U.S. government to defeat an alien mastermind trying to take over Earth.

Directors: Rob Letterman, Conrad Vernon | Stars: Reese Witherspoon, Rainn Wilson, Stephen Colbert, Seth Rogen

Votes: 128,308 | Gross: $198.35M

32. Killer Klowns from Outer Space (1988)

PG-13 | 88 min | Comedy, Horror, Sci-Fi

6.1
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    1 2 3 4 5 6 7 8 9 10 6.1/10 X  

Aliens who look like clowns come from outer space and terrorize a small town.

Director: Stephen Chiodo | Stars: Grant Cramer, Suzanne Snyder, John Allen Nelson, John Vernon

Votes: 26,666 | Gross: $15.63M

33. Race to Witch Mountain (2009)

PG | 98 min | Action, Adventure, Family

5.7
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    1 2 3 4 5 6 7 8 9 10 5.7/10 X  
52 Metascore

A Las Vegas cabbie enlists the help of a UFO expert to protect two siblings with paranormal powers from the clutches of an organization that wants to use the kids for their nefarious plans.

Director: Andy Fickman | Stars: Dwayne Johnson, Carla Gugino, AnnaSophia Robb, Alexander Ludwig

Votes: 48,374 | Gross: $67.17M

34. Wolf Creek (2005)

R | 99 min | Horror, Thriller

6.3
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    1 2 3 4 5 6 7 8 9 10 6.3/10 X  
54 Metascore

Three backpackers stranded in the Australian outback are plunged in a hellish nightmare of insufferable torture by a sadistic psychopathic local.

Director: Greg McLean | Stars: Nathan Phillips, Cassandra Magrath, Kestie Morassi, John Jarratt

Votes: 60,904 | Gross: $16.19M

35. Chicken Little (2005)

G | 81 min | Animation, Adventure, Comedy

5.8
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    1 2 3 4 5 6 7 8 9 10 5.8/10 X  
48 Metascore

After ruining his reputation with the town, a courageous chicken must come to the rescue of his fellow citizens when aliens start an invasion.

Director: Mark Dindal | Stars: Zach Braff, Joan Cusack, Garry Marshall, Don Knotts

Votes: 73,319 | Gross: $135.39M

36. Battle Los Angeles (2011)

PG-13 | 116 min | Action, Sci-Fi

5.8
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    1 2 3 4 5 6 7 8 9 10 5.8/10 X  
37 Metascore

A squad of U.S. Marines becomes the last line of defense against a global invasion.

Director: Jonathan Liebesman | Stars: Aaron Eckhart, Michelle Rodriguez, Bridget Moynahan, Ramon Rodriguez

Votes: 163,156 | Gross: $83.55M

37. Heavy Metal (1981)

R | 86 min | Animation, Adventure, Fantasy

6.7
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    1 2 3 4 5 6 7 8 9 10 6.7/10 X  
51 Metascore

A glowing green orb - which embodies ultimate evil - terrorizes a young girl with an anthology of bizarre and fantastic stories of dark fantasy, eroticism and horror.

Directors: Gerald Potterton, John Bruno, John Halas, Julian Harris, Jimmy T. Murakami, Barrie Nelson, Paul Sabella, Jack Stokes, Pino Van Lamsweerde, Harold Whitaker | Stars: Richard Romanus, John Candy, Joe Flaherty, Don Francks

Votes: 26,780

38. Sphere (1998)

PG-13 | 134 min | Drama, Horror, Mystery

6.1
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    1 2 3 4 5 6 7 8 9 10 6.1/10 X  
35 Metascore

A spaceship is discovered under three hundred years' worth of coral growth at the bottom of the ocean.

Director: Barry Levinson | Stars: Dustin Hoffman, Sharon Stone, Samuel L. Jackson, Peter Coyote

Votes: 89,745 | Gross: $37.02M

39. Evils of the Night (1985)

R | 84 min | Horror, Sci-Fi

3.2
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    1 2 3 4 5 6 7 8 9 10 3.2/10 X  

Vacationing teens are systematically kidnapped and taken to a strange, rural hospital, run by a mysterious group that needs their blood.

Director: Mohammed Rustam | Stars: Neville Brand, Aldo Ray, Tina Louise, John Carradine

Votes: 733

40. Fire in the Sky (1993)

PG-13 | 109 min | Biography, Drama, Fantasy

6.5
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    1 2 3 4 5 6 7 8 9 10 6.5/10 X  

An Arizona logger mysteriously disappears for five days in an alleged encounter with a flying saucer in 1975.

Director: Robert Lieberman | Stars: D.B. Sweeney, Robert Patrick, Craig Sheffer, Peter Berg

Votes: 18,091 | Gross: $20.10M

41. Critters (1986)

PG-13 | 86 min | Comedy, Horror, Sci-Fi

6.0
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    1 2 3 4 5 6 7 8 9 10 6/10 X  

A group of small, furry aliens makes lunch out of the locals in a farming town.

Director: Stephen Herek | Stars: Dee Wallace, M. Emmet Walsh, Billy Green Bush, Scott Grimes

Votes: 26,495 | Gross: $13.17M

42. The War of the Worlds (1953)

G | 85 min | Action, Sci-Fi, Thriller

7.1
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    1 2 3 4 5 6 7 8 9 10 7.1/10 X  

A small town in California is attacked by Martians, beginning a worldwide invasion.

Director: Byron Haskin | Stars: Gene Barry, Ann Robinson, Les Tremayne, Robert Cornthwaite

Votes: 28,024 | Gross: $4.36M

43. Freaks of Nature (2015)

R | 92 min | Comedy, Horror, Sci-Fi

5.9
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    1 2 3 4 5 6 7 8 9 10 5.9/10 X  

In the town of Dillford, humans, vampires and zombies were all living in peace - until the alien apocalypse arrived. Now three teenagers - one human, one vampire, and one zombie - have to team up to figure out how to get rid of the visitors.

Director: Robbie Pickering | Stars: Nicholas Braun, Mackenzie Davis, Josh Fadem, Denis Leary

Votes: 8,769

44. Taken (2002)

877 min | Drama, Sci-Fi

7.9
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    1 2 3 4 5 6 7 8 9 10 7.9/10 X  

Three families experience alien abductions over a period of five decades.

Stars: Dakota Fanning, Matt Frewer, Emily Bergl, Heather Donahue

Votes: 17,845

45. The Fourth Kind (2009)

PG-13 | 98 min | Mystery, Sci-Fi, Thriller

5.9
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    1 2 3 4 5 6 7 8 9 10 5.9/10 X  
34 Metascore

A thriller involving an ongoing unsolved mystery in Alaska, where one town has seen an extraordinary number of unexplained disappearances during the past 40 years and there are accusations of a federal cover up.

Director: Olatunde Osunsanmi | Stars: Milla Jovovich, Elias Koteas, Will Patton, Hakeem Kae-Kazim

Votes: 67,611 | Gross: $25.46M

46. The Day the Earth Stood Still (1951)

G | 92 min | Drama, Sci-Fi

7.8
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    1 2 3 4 5 6 7 8 9 10 7.8/10 X  

An alien lands and tells the people of Earth that they must live peacefully or be destroyed as a danger to other planets.

Director: Robert Wise | Stars: Michael Rennie, Patricia Neal, Hugh Marlowe, Sam Jaffe

Votes: 69,598

47. Robinson Crusoe on Mars (1964)

Not Rated | 110 min | Adventure, Sci-Fi

6.6
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    1 2 3 4 5 6 7 8 9 10 6.6/10 X  

Stranded on Mars with only a monkey as a companion, an astronaut must figure out how to find oxygen, water, and food on the lifeless planet.

Director: Byron Haskin | Stars: Paul Mantee, Victor Lundin, Adam West, The Woolly Monkey

Votes: 5,294

48. Xanadu (1980)

PG | 96 min | Fantasy, Musical, Romance

5.1
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    1 2 3 4 5 6 7 8 9 10 5.1/10 X  
35 Metascore

A struggling artist living in Los Angeles meets a girl who may hold the key to his happiness.

Director: Robert Greenwald | Stars: Olivia Newton-John, Gene Kelly, Michael Beck, James Sloyan

Votes: 10,274 | Gross: $22.76M

49. Mysterious Skin (2004)

Unrated | 105 min | Drama, Mystery

7.7
Rate this
    1 2 3 4 5 6 7 8 9 10 7.7/10 X  
73 Metascore

A teenage hustler and a young man obsessed with alien abductions cross paths, together discovering a horrible, liberating truth.

Director: Gregg Araki | Stars: Brady Corbet, Joseph Gordon-Levitt, Elisabeth Shue, Chase Ellison

Votes: 60,959 | Gross: $0.70M

50. UFO (1970–1973)

TV-PG | 45 min | Action, Sci-Fi

8.0
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    1 2 3 4 5 6 7 8 9 10 8/10 X  

The missions of the Supreme Headquarters Alien Defence Organization, which defends Earth from extra-terrestrial threats.

Stars: Ed Bishop, Dolores Mantez, Michael Billington, Ayshea Brough

Votes: 2,137