The Greatest Sci-Fi Movies of All Time Films
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The Greatest Sci-Fi Movies of All Time

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.

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 Worlds,' 'The Invisible Man') or Philip K. Dick ('Blade Runner,' 'Minority 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!
  • 72 ReRanks
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  1. 1
    Up 802
    Down 280

    Sigourney Weaver, John Hurt, Ian Holm

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  2. 2
    Up 855
    Down 333

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

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  3. 3
    Up 730
    Down 237

    Arnold Schwarzenegger, Linda Hamilton, Bill Paxton

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  4. 4
    Up 675
    Down 206

    Sigourney Weaver, Bill Paxton, Paul Reiser

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  5. 5
    Up 818
    Down 241

    Harrison Ford, Carrie Fisher, Mark Hamill

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  6. 6
    Up 742
    Down 250

    Harrison Ford, Daryl Hannah, Sean Young

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  7. 7
    Up 902
    Down 234

    ranked low on reranks Keanu Reeves, Laurence Fishburne, Carrie-Anne Moss

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  8. 8
    Up 706
    Down 223

    Arnold Schwarzenegger, Edward Furlong, Linda Hamilton

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  9. 9
    Up 727
    Down 242

    Michael J. Fox, Lea Thompson, Jason Hervey

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  10. 10
    Up 558
    Down 266

    Arthur C. Clarke, Leonard Rossiter, Ed Bishop

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  11. 11
    Up 647
    Down 231

    Samuel L. Jackson, Jeff Goldblum, Laura Dern

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  12. 12
    Up 587
    Down 224

    Harrison Ford, Carrie Fisher, Mark Hamill

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  13. 13
    Up 566
    Down 213

    Milla Jovovich, Bruce Willis, Gary Oldman

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  14. 14
    Up 486
    Down 246

    often listed & ranked high on reranks Kirstie Alley, William Shatner, Leonard Nimoy

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  15. 15
    Up 545
    Down 210

    Arnold Schwarzenegger, Jesse Ventura, Carl Weathers

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  16. 16
    Up 476
    Down 180

    Arnold Schwarzenegger, Sharon Stone, Dean Norris

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  17. 17
    Up 529
    Down 241

    Jennifer Morrison, Zoe Saldana, Winona Ryder

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  18. 18
    Up 501
    Down 212

    Bill Murray, Sigourney Weaver, Dan Aykroyd

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  19. 19
    Up 409
    Down 259

    Drew Barrymore, Erika Eleniak, Robert MacNaughton

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  20. 20
    Up 539
    Down 292

    Will Smith, Jeff Goldblum, Vivica A. Fox

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  21. 21
    Up 606
    Down 257

    ranked low on reranks Leonardo DiCaprio, Marion Cotillard, Joseph Gordon-Levitt

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  22. 22
    Up 374
    Down 223

    often listed & ranked high on reranks Richard Dreyfuss, Teri Garr, Bob Balaban

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  23. 23
    Up 459
    Down 241

    Charlton Heston, Linda Harrison, Roddy McDowall

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  24. 24
    Up 342
    Down 166

    Brad Pitt, Bruce Willis, Christopher Plummer

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  25. 25
    Up 409
    Down 175

    Kurt Russell, James Spader, Djimon Hounsou

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  26. 26
    Up 426
    Down 200

    Sigourney Weaver, Laraine Newman, Jeff Garlin

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  27. 27
    Up 392
    Down 188

    Summer Glau, Morena Baccarin, Nathan Fillion

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  28. 28
    Up 497
    Down 307

    Zoe Saldana, Sigourney Weaver, Michelle Rodriguez

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  29. 29
    Up 334
    Down 216

    Patricia Neal, Michael Rennie, Sam Jaffe

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  30. 30
    Up 357
    Down 213

    Alex Van Halen, Leeza Gibbons, Peter Weller

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  31. 31
    Up 338
    Down 190

    Cameron Diaz, Tom Cruise, Colin Farrell

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  32. 32
    Up 323
    Down 199

    Mel Gibson, Bruce Spence, Vernon Wells

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  33. 33
    Up 315
    Down 208

    Sigourney Weaver, Alan Rickman, Tim Allen

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  34. 34
    Up 339
    Down 173

    Kurt Russell, Keith David, John Carpenter

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  35. 35
    Up 372
    Down 207

    Denise Richards, Neil Patrick Harris, Amy Smart

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  36. 36
    Up 355
    Down 197

    Clint Eastwood, Michael J. Fox, Elisabeth Shue

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  37. 37
    Up 314
    Down 79

    ranked low on reranks

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  38. 38
    Up 363
    Down 244

    Sharlto Copley, John Sumner, Jed Brophy

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  39. 39
    Up 267
    Down 195

    Gene Barry, Les Tremayne, Ann Robinson

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  40. 40
    Up 259
    Down 119

    ranked low on reranks Vin Diesel, Radha Mitchell, Keith David

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  41. 41
    Up 298
    Down 230

    Matthew McConaughey, Jodie Foster, Jay Leno

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  42. 42
    Up 263
    Down 154

    Yvette Mimieux, Rod Taylor, Alan Young

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  43. 43
    Up 244
    Down 144

    Ed Harris, Mary Elizabeth Mastrantonio, Michael Biehn

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  44. 44
    Up 207
    Down 130

    Patrick Stewart, James Cromwell, Alfre Woodard

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  45. 45
    Up 242
    Down 181

    Jennifer Connelly, Kiefer Sutherland, William Hurt

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  46. 46
    Up 234
    Down 126

    Will Smith, Shia LaBeouf, Bridget Moynahan

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  47. 47
    Up 231
    Down 151

    Marlon Brando, Gene Hackman, Christopher Reeve

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  48. 48
    Up 229
    Down 161

    Tom Hanks, Kevin Bacon, Bryce Dallas Howard

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  49. 49
    Up 189
    Down 144

    Geena Davis, Jeff Goldblum, David Cronenberg

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  50. 50
    Up 181
    Down 138

    Fay Wray, Bruce Cabot, Merian C. Cooper

    open
224 +

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