The Greatest Sci-Fi Movies of All Time

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List Criteria: Which science fiction films are the best? Vote up your favorites and add any that aren't already on the list.

What are the greatest sci-fi movies of all time? Science fiction films are among the most popular movies in cinematic history, with films like Star Wars and Aliens keeping audiences on the edge of their collective seats for decades. This list includes these classics, and many more, but it is by no means complete. Feel free to add your favorite sci-fi movies if they aren't listed, and vote for your favorites.

Want to see more of the best Sci-Fi? Here are the Best Sci-Fi TV Shows of All Time

Great sci-fi films include stories of extraterrestrial life, time travel, space travel, robots and more. Some of these amazing science fiction movies are more fantasy-oriented, while others are a bit closer to reality. Either way, scifi films keep audiences rapt with tales of science and technology, combined, at times with the supernatural.

Some sci-fi films are based on classic novels or short stories by such heavyweight authors as H.G. Wells (War of the WorldsThe Invisible Man) or Philip K. Dick (Blade RunnerMinority Report).

What are the greatest sci fi movies of all time? This list of the best sci-fi films is also Crowdranked, meaning you can rerank your own greatest sci-fi movies. Your reranks can change the overall order of the films on the list!

Collection Photo: user uploaded image
  • 145 ReRanks
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    • Men
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  • 2 See list ranked by
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  1. 1
    + 2,785
    - 854

    the people's #1 & most listed
    Harrison Ford, Carrie Fisher, Mark Hamill

    ;
  2. 2
    + 2,890
    - 689

    ranked low on reranks
    Harrison Ford, Carrie Fisher, Mark Hamill

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  3. 3
    + 2,309
    - 781


    Sigourney Weaver, John Hurt, Ian Holm

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  4. 4
    + 2,018
    - 784


    Arnold Schwarzenegger, Edward Furlong, Linda Hamilton

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  5. 5
    + 2,444
    - 885


    Keanu Reeves, Hugo Weaving, Carrie-Anne Moss

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  6. 6
    + 2,134
    - 726


    Harrison Ford, Daryl Hannah, Sean Young

    ;
  7. 7
    + 2,030
    - 680


    Arnold Schwarzenegger, Bill Paxton, Linda Hamilton

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  8. 8
    + 2,059
    - 750


    Michael J. Fox, Christopher Lloyd, Lea Thompson

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  9. 9
    + 2,053
    - 594


    Harrison Ford, Carrie Fisher, Mark Hamill

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  10. 10
    + 1,725
    - 806

    often listed & ranked high on reranks
    Arthur C. Clarke, Leonard Rossiter, Ed Bishop

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  11. 11
    + 1,956
    - 611


    Sigourney Weaver, Bill Paxton, Michael Biehn

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  12. 12
    + 1,911
    - 661


    Samuel L. Jackson, Jeff Goldblum, Richard Attenborough

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  13. 13
    + 1,307
    - 790

    often listed
    Drew Barrymore, Erika Eleniak, Debra Winger

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  14. 14
    + 1,131
    - 657


    Richard Dreyfuss, Teri Garr, Carl Weathers

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  15. 15
    + 1,362
    - 675


    Kirstie Alley, William Shatner, Leonard Nimoy

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  16. 16
    + 1,344
    - 606


    Arnold Schwarzenegger, Sharon Stone, Michael Ironside

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  17. 17
    + 1,633
    - 703


    Milla Jovovich, Bruce Willis, Gary Oldman

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  18. 18
    + 1,281
    - 670


    Charlton Heston, Linda Harrison, James Whitmore

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  19. 19
    + 1,412
    - 625


    Bill Murray, Sigourney Weaver, Dan Aykroyd

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  20. 20
    + 1,476
    - 538


    Arnold Schwarzenegger, Jesse Ventura, Carl Weathers

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  21. 21
    + 1,402
    - 769


    Will Smith, Jeff Goldblum, Vivica A. Fox

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  22. 22
    + 1,353
    - 680


    Zoe Saldana, Jennifer Morrison, Winona Ryder

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  23. 23
    + 1,514
    - 735


    Leonardo DiCaprio, Tom Hardy, Marion Cotillard

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  24. 24
    + 1,054
    - 549


    Brad Pitt, Bruce Willis, Christopher Plummer

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  25. 25
    + 1,150
    - 517


    Kurt Russell, James Spader, Djimon Hounsou

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  26. 26
    + 1,047
    - 566


    Clint Eastwood, Michael J. Fox, Elisabeth Shue

    ;
  27. 27
    + 1,174
    - 603


    Sigourney Weaver, Laraine Newman, Kathy Najimy

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  28. 28
    + 959
    - 260

    ranked low on reranks & added by AndrewGreen
    Zoe Saldana, Bradley Cooper, Karen Gillan

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  29. 29
    + 925
    - 618

    often listed & ranked high on reranks
    Cameron Diaz, Tom Cruise, Colin Farrell

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  30. 30
    + 1,296
    - 894

    often listed & ranked high on reranks
    Zoe Saldana, Sigourney Weaver, Michelle Rodriguez

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  31. 31
    + 1,051
    - 482


    Kurt Russell, Keith David, John Carpenter

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  32. 32
    + 881
    - 298

    ranked low on reranks & added by but chickens double d
    Will Smith, Sylvester Stallone, Steven Spielberg

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  33. 33
    + 1,053
    - 516

    ranked low on reranks
    Summer Glau, Morena Baccarin, Nathan Fillion

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  34. 34
    + 780
    - 464


    Yvette Mimieux, Rod Taylor, Alan Young

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  35. 35
    + 993
    - 578


    Neil Patrick Harris, Denise Richards, Amy Smart

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  36. 36
    + 857
    - 498


    Mel Gibson, Bruce Spence, Vernon Wells

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  37. 37
    + 816
    - 535


    Patricia Neal, Michael Rennie, Frances Bavier

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  38. 38
    + 965
    - 646


    Sharlto Copley, Jed Brophy, Vanessa Haywood

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  39. 39
    + 902
    - 498


    Alex Van Halen, Peter Weller, Leeza Gibbons

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  40. 40
    + 867
    - 547


    Sigourney Weaver, Alan Rickman, Tim Allen

    ;
  41. 41
    + 730
    - 279

    ranked low on reranks
    Harrison Ford, Sean Connery, River Phoenix

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  42. 42
    + 735
    - 444


    Ed Harris, Mary Elizabeth Mastrantonio, Chris Elliott

    ;
  43. 43
    + 582
    - 442

    added by DukeArcher
    Malcolm McDowell, Warren Clarke, Steven Berkoff

    ;
  44. 44
    + 675
    - 422


    Tom Hanks, Bryce Dallas Howard, Ed Harris

    ;
  45. 45
    + 743
    - 589


    Matthew McConaughey, Jodie Foster, Jay Leno

    ;
  46. 46
    + 763
    - 513


    Will Smith, Shia LaBeouf, Bridget Moynahan

    ;
  47. 47
    + 622
    - 459


    William Shatner, Leonard Nimoy, George Takei

    ;
  48. 48
    + 712
    - 473


    Joan Rivers, John Hurt, Mel Brooks

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  49. 49
    + 598
    - 282

    ranked low on reranks
    Mel Gibson, Hugh Keays-Byrne, Steve Bisley

    ;
  50. 50
    + 643
    - 434


    Patrick Stewart, James Cromwell, Alfre Woodard

    ;
569 +

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