The 50+ Best G-Rated Science Fiction Movies

Ranker Film
Updated September 12, 2023 715 votes 84 voters
Over 80 Ranker voters have come together to rank this list of The 50+ Best G-Rated Science Fiction Movies
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List of G-Rated science fiction movies, ranked from best to worst with movie trailers when available. This list takes the best G-Rated science fiction movies and pits them against each other to see once and for all what the greatest G-Rated Science Fiction movie of all time is. This list of popular G-Rated science fiction movies includes information like who directed the film, when it was released and which actors starred in the movie. If you think the top G-Rated Science Fiction movie isn't as high as it should be then be sure to vote it up so it can take its rightful place among the other great G-Rated Science Fiction films on this list. If you're trying to find a specific G-Rated Science Fiction film you can search this list and filter to find what you're looking for.

Examples of movies on this list include WALL-E and 2001: A Space Odyssey.

If you're trying to find out "What are the best G-Rated science fiction movies?" and "What are the most famous G-Rated science fiction movies?" then this list is the perfect resource for you.

Use this list if you're looking for some new science fiction movies that are rated G. Between Netflix, Hulu and other services there are thousands of great science fiction movies rated G, so get out there and start watching.

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What kind of directors have worked on Science Fiction G movies in the past? Stanley Kubrick and John Carpenter both have, as have other great directors.

Most divisive: Return from Witch Mountain
Ranked by
  • 2001: A Space Odyssey
    1

    2001: A Space Odyssey

    Keir Dullea, Gary Lockwood, William Sylvester
    28 votes
    • Released: 1968
    • Directed by: Stanley Kubrick
    In Stanley Kubrick's groundbreaking film 2001: A Space Odyssey, Dr. Dave Bowman (Keir Dullea) and his crew embark on a mysterious journey to Jupiter, guided by their ship's artificially intelligent computer, HAL 9000 (voiced by Douglas Rain). This epic science fiction masterpiece, which won an Academy Award for Best Visual Effects, explores themes of evolution, technology, artificial intelligence and the unknown. The movie is renowned for its realistic depiction of space travel and innovative special effects, providing a visually stunning cinematic experience that captivated audiences worldwide.

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  • It Came from Outer Space
    2

    It Came from Outer Space

    Richard Carlson, Barbara Rush, Charles Drake
    15 votes
    • Released: 1953
    • Directed by: Jack Arnold
    While looking through his telescope one night, John Putnam (Richard Carlson) sees what at first appears to be a meteor shower -- but it is actually a crash-landing alien spaceship! After investigating the crater from the impact, John informs the town sheriff (Charles Drake), and receives nothing but ridicule. Even his fiancée, Ellen (Barbara Rush), is skeptical. All that changes when the townsfolk start disappearing, and are replaced by eerie alien duplicates.

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  • The Time Machine
    3

    The Time Machine

    Rod Taylor, Alan Young, Yvette Mimieux
    18 votes
    • Released: 1960
    • Directed by: George Pal
    Scientist H. George Wells (Rod Taylor) builds a time machine, and despite the warning from his friend David (Alan Young) against "tempting the laws of providence," decides to visit the future. Jumping ahead 14 years, he observes changes in women's fashion. Jumping ahead 40, he meets David's son (also Young) amid a terrible war. Finally, he travels thousands of years ahead to discover a post-apocalyptic world inhabited by humanoid Eloi and the monstrous Morlocks that feed on them.

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  • The Day the Earth Stood Still
    4

    The Day the Earth Stood Still

    Michael Rennie, Patricia Neal, Hugh Marlowe
    18 votes
    • Released: 1951
    • Directed by: Robert Wise
    In the cinematic spectacle The Day the Earth Stood Still, alien emissary Klaatu (Michael Rennie) arrives on Earth with a dire warning. Accompanied by his ominous, ironclad sentinel Gort (Lock Martin), they bring a message that could alter the world's fate forever. Patricia Neal plays Helen Benson, a humble human who finds herself at the epicenter of this interstellar incident. As military forces react with fear and hostility, it's a race against time to comprehend Klaatu's mission before calamity strikes. This 1951 film is a memorable blend of science fiction and political allegory that has left an indelible mark in cinema history.
  • Forbidden Planet
    5

    Forbidden Planet

    Walter Pidgeon, Anne Francis, Leslie Nielsen
    17 votes
    • Released: 1956
    • Directed by: Fred M. Wilcox
    In this sci-fi classic, a spacecraft travels to the distant planet Altair IV to discover the fate of a group of scientists sent there decades earlier. When Commander John J. Adams (Leslie Nielsen) and his crew arrive, they discover only two people: Dr. Morbius (Walter Pidgeon) and his daughter, Altaira (Anne Francis), who was born on the remote planet. Soon, Adams begins to uncover the mystery of what happened on Altair IV, and why Morbius and Altaira are the sole survivors.

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  • Planet of the Apes
    6

    Planet of the Apes

    Charlton Heston, Roddy McDowall, Kim Hunter
    22 votes
    • Released: 1968
    • Directed by: Franklin J. Schaffner
    Planet of the Apes is a riveting science fiction classic directed by Franklin J. Schaffner. Astronaut George Taylor (Charlton Heston) finds himself in a world run by evolved apes after a catastrophic spaceship crash. In this upside-down society, humans are mute creatures hunted for sport and used for scientific experiments. The intelligent Cornelius (Roddy McDowall) and empathetic Zira (Kim Hunter), two chimpanzee scientists, ally with Taylor in his quest to uncover the planet's earth-shattering secret. A gripping tale that won an honorary Academy Award for its groundbreaking makeup design, Planet of the Apes is a thought-provoking exploration of societal roles and humanity's future.

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