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15 Thought-Provoking Sci-fi Films That Are Worth Your Time

11 July 2014 | Features, Film Lists | by Bryn Tilly

2001 A Space Odyssey

It goes without saying that the science fiction genre and the term “thought-provoking” go hand in (spacesuit) glove, simply because science fiction deals with concepts and themes that are by and large removed from our normal everyday experience; they grapple with the technology of the future, they play with the space-time continuum, they fiddle with the supernatural, they wrestle with extraterrestrialism. SF movies are about all that is fantastic, in the purest sense of the word.

The more interesting of the science fiction movies, perhaps those that are less gratifying on any kind of immediate, visceral action-adventure level, are the ones that present the viewer with a strong “What if…?” scenario. They pose questions (often unanswered) about humanity, technology, morality, ethics, physiology, mortality, and memory, even love and desire, which are outside any kind of immediate, easy rationale.

But most importantly, the ideas, concepts, and questions they pose are grounded in realism. They resonant and provoke discussion because they are, mostly, scenarios that could viably exist in the real world, in the flesh, or as machine, or within a virtual reality. The elements they use are reachable by humans, often palpable.

But intrinsically these movies are asking questions that cut to the very core of who we are and what we want as human beings in the here and now. They challenge our sensibilities; take us out of our comfort zone. And we thank them for it.

Here then are fifteen films that challenge the intellect, perhaps push those emotional panic buttons, but definitely play with our understanding and curiosity about the possibilities of our future (or the past), the delicate, fascinating fabric of space and time, and our immediate functioning selves.


15. The Time Machine (George Pal, 1960)

The Time Machine

Based on H. G. Wells’ classic novel, published in 1895, it’s about a Victorian Englishman, George (Rod Taylor), who has invented a time machine (Wells coined the now universal term) and has been game enough to travel into the distant future to the year 802, 701, no less! At movie’s start he relates his extraordinary adventures to his close friends, after arriving late and disheveled to his own dinner party (part of the causality effect). His guests are curious, but skeptical.

When dabbling with time most travelers venture into the future, and much to his horror, and to the morbid fascination of the audience, George soon learns that civilisation has split into the childlike Eloi and the cannibalistic Morlocks. It’s a grim projection of social degeneration, disturbingly accurate considering how apathy and violence are so prevalent in our present. It may seem irresistibly exciting, but time traveling into the future is a wild card indeed.

Will technology end up turning us into vegetables, and inexorably ruin our thirst for art, literature, and culture?

The Time Machine was remade in 2002 by H. G. Wells’ great-grandson Simon Wells, but without a shred of the original’s sense of ominous wonder or striking design. No discernible sense of style either.


14. THX 1138 (George Lucas, 1969)


Originally made as his student thesis project, entitled Electronic Labyrinth: THX 1138 4EB, George Lucas was encouraged to turn his minimalist dystopian vision into his debut feature. In a totalitarian future where humans are known only as numbers, controlled by drugs, and sex is outlawed, THX (Robert Duvall) is found to be having a relationship with LUH (Maggie McOmie). Shock, horror, probe! He is punished. He meets SEN (Donald Pleasance) and makes plans for an escape.

Love, once again, complicates everything. Humanity, once again, can’t help but descend into violent manipulation. Emotional suppression is the weapon, and physical rebellion is not the answer. But, of course, it always is. The most adult film of Lucas’s career, it is also the most bleak, with a classic “shock” ending.

If love is forbidden, and sex is a crime, would intimacy be the most valuable freedom allowed?

Lucas, the terminal fiddler, released a director’s cut in 2004 with extensive enhancements to both image and audio, including CGI embellishments. Thankfully THX still shoots first.


13. Quatermass And The Pit (Roy Ward Baker, 1967)

Quatermass And The Pit

Known as Five Million Years to Earth in the US, Nigel Neale’s story, originally the basis of a television serial, tells of the discovery of a Martian craft buried near the London Underground and the remains of humans that suggest extraterrestrials have influenced human evolution and intelligence. More dangerous, however, is the supernatural malevolent force the unearthed alien ship exhibits.

Although it is the third film in the Hammer Films’ Quatermass series it is arguably the most powerful as it questions the nature and origin of humankind (pre-dating Prometheus by nearly fifty years). It also includes the ideas of genetic memory and telekinesis. The link between alien psychic power and the fragile human mind are explored and tampered with.

Could the intelligence of humankind been enhanced by something not of this Earth?


12. The Man Who Fell to Earth (Nicolas Roeg, 1976)


David Bowie plays Thomas Jerome Newtown, an alien in humanoid form. He is on a mission to get water back to his planet, in particular, his dying family. Along the way he meets Mary-Lou (Candy Clark) and they begin a relationship of sorts. Newtown has numerous patents because of his advanced otherworldly knowledge and he uses these to build a hugely successful technology company in order to secure the billions of dollars he needs to make an intergalactic vessel for his return home.

It is a tale of compassion and addiction, with a deep sense of irony permeating a fundamentally futile, wayward rescue mission. Punctuated with Roeg’s signature use of subliminal, often surreal images and symbolism, the casting of Bowie was inspired, to say the least (Bowie was heavily into coke at the time and his performance/state of mind is authentically dissipated), the ending profoundly sad.

What happens to our mental health and intimate relationships when we become obsessed with social media and the crutches of self-medication?


11. eXistenZ (David Cronenberg, 1999)


Allegra Gellar (Jennifer Jason Leigh) is the world’s leading game designer. Her new virtual reality game, eXistenZ, is being tested with a focus group. Chaos breaks out, an assassin has infiltrated the building, and Gellar flees with trainee Ted Pikul (Jude Law), then together they play her game in order to get answers. Reality and virtual reality begin to slide.

As video games become more realistic, more interactive, more immersive, the merger of cyberspace and the virtual reality playground will become a dangerous and volatile minefield. Cronenberg’s fascination with physiological transgression and alternate realities reaches fever pitch in this thriller study of how humankind will react and interact with the gaming technology of the near future.

If the more we play with virtual power and manipulation, will the grasp on our own psychic reigns loosen?


10. Moon (Duncan Jones, 2009)


Sam Bell (Sam Rockwell) harvests a clean and abundant alternate fuel from the moon back to Earth. Employed by Lunar Industries he works entirely alone, with the aid of an advanced computer (voiced by Kevin Spacey), and relishes the sporadic recorded messages with his wife and young daughter. His contract is nearly up, but following an auto accident Sam wakes to find himself in the company of … himself. It seems all is not what it seems on Moon Base Sarang.

Screen-written by Nathan Parker from a story by David Bowie’s son Duncan on his feature-directing debut, Moon harks back to the late 70s in its look and feel (the use of miniature models in particular). It’s a spooky, atmospherically resonant movie, streaked with the kind of melancholy edge not usually seen in contemporary sf. The themes of loneliness, identity, deception, and betrayal are all mined with precision.

How real is the real you? If you find another you, who’s to say that you isn’t a better you than yourself?


9. Contact (Robert Zemeckis, 1997)


Based on the novel by the late, great cosmologist Carl Sagan, this is one of the few big budget Hollywood movies that intelligently deal with the Big Question: Aliens or God? Cleverly, and compellingly, it manages to avoid a direct answer, but then it wouldn’t be the resonant movie that it is (and on this list) if it did answer it straight out.

Dr. Ellie Arroway (Jodie Foster, in a career performance) has spent most of her life searching the stars. One day she intercepts a radio transmission, and before you can say, “Houston, we have a problem …” she’s manning an interstellar solo voyage, funded by wealthy benefactor Hadden (John Hurt) to reach the source of the signal. Will she make the journey? Will Christian philosopher Palmer Joss (Matthew McConaughy) prove her wrong?

Is white noise proof of intelligent alien life, or cryptic evidence of Creationism?



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  • Oh no! You missed Silent Running off the list. It’s such an underrated Sci-Fi movie.

  • donreplies

    Last three are so bad.

  • Patrycja Wnorowska

    Russian novel? The novel was written by famous Polish writer, Stanisław Lem. Please update to avoid disgrace 😉


      He could change it to Soviet writer….

  • Giorgos Trou

    What about Gattaca?

    • Armando De La Cruz

      Luv that movie and the ending always makes me

    • Shubhendu Singh

      Oh yes, i totally forgot about that. Gattaca deserves a spot.

  • Betty

    World on a wire !

  • Кристиан Валентинов

    Wow! No Spielberg?

    • Shubhendu Singh

      A.I was wasted time i will never get back…

      • Brian Lussier

        A.I. was a masterpiece I will never forget! But I’m assuming he meant Close Encounters…

  • Ted Wolf

    overall great list and I agree wholeheartedly with many of the selections (and won’t comment on the couple I haven’t yet seen). I’ve somehow missed the Blade Runner fan bus. I’ve always found it to be very dull and unimaginative. But hey, I guess it takes all kinds.

    • I Am Tyler Durden

      Ted, everyone in the room is now looking at you strangely.

      • Brian Lussier

        In 1982 they would have agreed with him, because no one loved it then, or almost. Its fan base has grown over time.

        • I Am Tyler Durden

          Hi Brian, I saw it at the cinema in 1982 in my mid teens. My honest memory was that I was swept up in the experience of it but I did not totally understand what was going on (even with the narration). It looked great and I loved the music. I think now it was Ridley Scott’s “Movie Language” in that there were lots of lingering shots and facial expressions the meanings of which were lost on me at the time. I liked it but I could not explain why, I wanted to see it again to understand it (reading the book did not help much with that). Now I know that watching it again is like going and revisiting That Place, particularly with the final director’s cut. It’s the whole immersive experience element. Even at my most recent watch last year I still see extra nuances in the looks the actors give and could write an essay purely on the cat and mouse verbal jousting in the opening interview of Leon. I do agree with you in that even I did not LOVE it, but I knew it was something special and in my quest to understand it we fell in love. It was one of the first videos I bought when I got a HiFi VHS and Dolby Surround amp in 1989 and have bought more versions and releases of it than any other.

  • Lovejoy

    Interesting that Minority Report and A.I. Are not on the list.

  • David Keith

    Whoa! What a list! I’d never have found any of these rare and obscure films on my own!

  • theokos


    • Alexandro Sifuentes Díaz


    • Brock Brahmes

      It should be no. 1

      • Carl Edgar Consiglio

        Its good…but dont exagerate!

    • TronSheridan

      Sorry, the Stalker movie is garbage as film. Read the book.

      • Kosta Jovanovic


  • MatDa

    Um. Not Danny Boyle’s Sunshine? Really?

    • Shubhendu Singh

      Have you seen its 3rd act ?
      It was cool and all but not thought-provoking

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  • Souvik Saha

    The Man From The Earth. One of the best ever!

  • Pavel Radu

    this one is just surreal
    Kin Dza Dza

  • Anacaona

    This list is missing The Fountain and Cloud Atlas

    • Brian Lussier

      Both films were mainly trashed by critics. I liked Cloud Atlas. I thought it was bold as hell! As for The Fountain, I wouldn’t call it sci-fi, more metaphysical than science-fictional. But maybe that’s just me. Haven’t seen it in about 5-6 years, so…

  • Not a fan of Primer but still, better than any Transformer piece of junk. You should consider adding Dark City to this list. I agree you left off Minority Report. I always find something new to catch my imagination in that film. I would also add Inception. I know, I know… either you love it or hate it. I’m a lover.

    • grant ellsworth

      2001 is on the list.

  • Hal Dunn

    2001, Time Machine, Brazil, 1984, Blade Runner, all good. I need to see the rest. Also, I’d add Minority Report and The Day the Earth Stood Still.

    • Brian Lussier

      I think if one is to put a Spielberg film (and there definitely should be one here), Close Encounters or A.I. should be considered before Minority Report.

  • Brian Lussier

    Star Wars is NOT a sci-fi film!! I hate when people say that. It’s an adventure film, pure and simple. The framing may be science-fictional, but the film(s) is not! For something to earn the term “sci-fi”, there needs to be some science to the story. Star Wars has none… And BTW, how is 2001 not #1 on this list?! Totally a fail!!

    • Harsha Raman

      Calm your tits dude! It’s ranked in chronological order.

      • Brian Lussier

        Yeah, I saw after, sorry. Still, many fails on this list. Where’s Metropolis, for instance?

  • grant ellsworth

    Where is Soylent Green???

  • Benas Bačanskas

    “The Matrix” is thought provoking as well.

  • Allister Cooper

    And some of them are boring old overrated farts.

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  • Nameless Paladin

    A.I. (2001)???

  • Goran Mars

    Logan’s Run!

  • Goran Mars

    Children Of Man and 1984 are not Sci-Fi movies.

  • Goran Mars

    Logan’s Run! And Children of Man and 1984 are not Sci-Fi!

  • Rup Kamal Kutum

    Honorable mentions :- Pi, Ex-Machina, The Matrix, Rubber, Time crimes, A.I. Artificial Intelligence, Computer Chess, The Thirteenth Floor, Dark City , The Signal, Cube and Her

    • Jagi

      I’m interested in why you labelled Rubber a sci-fi and thought provoking?

  • Manning Bartlett

    The Man From Earth is one of my favourites.

  • The Big E

    There are entire college courses devoted to exploring the philosophical and ethical aspects and implications of Gattaca. It should be on this list at, or at least near, the top spot.

  • Mateus O. Fernandes

    Coherence (2013)…

  • Abhishek

    The man from earth and Coherence should be included

    • Jagi

      Really? What films on the list would you take out to put those two in?

  • Ruchit Negotia

    top three are my fav scifi films ever!!!!!!!!!!!!!!!!!!!!


    Upstream Color

  • Lars Franssen

    How are 1984 and Children of Men sci-fi? They’re just dystopian!

  • Sergei Kazarov

    “aliens or god” im not religious but even I know the the books say :”O! Thou God of all beings,of all worlds and of all times” OR “Lord of the heavens and Lord of the earth, Lord of the worlds.The existence of aliens wouldn’t give us the answer to the God question

  • Adrian

    I’d consider adding (amongst many others) this gem of a Sci Fi movie from New Zeeland, brilliant in many ways – The Quiet Earth.

  • Carl Edgar Consiglio

    The Fly, Melancholia…