Sci-fi films tend to be pretty fantastic, mostly because it makes the spectacle more immersive and visually impressive. However, the best films in this genre that have truly stood the test of time are those that are as close to reality as possible.

Redditors recently gathered on r/movies, the largest movie subreddit, to discuss which sci-fi movies are the most believable. These films take real world principles but extrapolate them to their logical conclusion to create a plausible vision of the future.

10 ‘Arrival’ (2016)

Louise reads alien language
Image via Paramount Pictures

Linguist Louise BanksAmy Adams) is recruited by the US military to communicate with extraterrestrial beings that have landed on Earth. As she deepens into the alien language, Louise begins to experience a profound shift in her understanding of time and reality. One of the most thoughtful sci-fi films of recent years, it focuses on the power of language and communication and how they shape our perception of the world around us.

“I think Arrival seemed the most plausible in terms of what an interaction with an extraterrestrial species might be like. Language is extremely complex, and most sci-fi films quickly resolve the issue with a magical translator device so they can continue the story they want to tell. I also love how ‘alien’ the aliens were,” redditor misterjoego told Redditor. “The concept of time travel is a bit more complicated and the overall plausibility can be questionable, although admittedly it worked really well for the story.”

9 ‘Martian’ (2015)

Martian (2015) (1)

Astronaut Mark WatneyMatt Damon) ends up on Mars after being abandoned by his crew during a storm. As the only person on the planet, Watney must use his resourcefulness and scientific knowledge to survive and find a way to contact Earth.

The premise is not if, but when, as various people say, in the first place Elon Muskhave set their sights on sending humans to Mars in the coming years. “In accordance with Neil deGrasse Tyson, Martian is the most scientifically accurate sci-fi movie ever,” user spennychurch said.

8 ‘2001: A Space Odyssey’ (1968)

Astronaut works in a lighted room
Image via Metro-Goldwyn-Mayer

This Stanley Kubrick This masterpiece tells of a journey to Jupiter aboard the Space Shuttle Discovery, which is controlled by the advanced and seemingly intelligent HAL 9000 computer. Astronauts Dr. David Bowman (Keir Dullea) and Dr. Frank Poole (Gary Lockwood) must confront mysterious forces in their path, including an evil AI

“NASA was on board for this movie,” said Reddit user dantecubit3000. “The only mistake I know of is that Heywood Floyd drinks through a straw in zero gravity, and when he stops, the liquid flows down the straw again. A small glitch in a fantastic, largely science-based film.”

7 “The Andromeda Strain” (1971)

Andromeda Strain are two scientists exploring a small town in New Mexico where everyone died.

Arthur Hill is Dr. Jeremy Stone, a microbiologist who is leading a team of scientists in a desperate race to find a cure for a virus brought to Earth by a space probe. This is a gripping film that delves into the intricacies of science and the dangers of uncontrolled technological progress.

It stands out for its innovative use of split-screen cinematography and the composer’s haunting electronic music. Gilles Melle. Andromeda strain looks even more prescient in light of the 2020 coronavirus pandemic. “The concept is simple and very believable. We don’t need any technology that doesn’t exist yet,” said user Psychological-Rub-72.

6 ‘Gattaca’ (1997)

Ethan Hawke in Gattaca

This sci-fi dystopia explores the implications of genetic engineering and the social implications of a world in which genetic structure determines the worth of people. Ethan Hawke a genetically disabled man who dreams of working for the elite Gattaca Aerospace Corporation. Despite being considered unsuitable for the job due to his genes, he takes on the identity of a genetically superior individual and goes to great lengths to achieve his dream.

Gattaca One of the most believable sci-fi movies I’ve ever seen. To date, there are many demonstrated genetic screening technologies, although [is] nowhere near as fast and accurate as shown in the movie,” Redditor cerberaspeedtwelve told Redditor.

5 ‘She’ (2013)

Spike JonzeX Her explores the complexities of human relationships in the age of artificial intelligence. Theodore TwomblyJoaquin Phoenix) is a lonely man who falls in love with his artificial intelligence operating system, voiced by Scarlett Johansson. As Theodore’s relationship with OS deepens, he begins to question the nature of love, identity, and what it means to be truly human.

The film looks more and more believable every year as AI and chatbots in particular become more and more humanistic. “It’s already happening honesty,” user antunezn0n0 said.

4 “Stowaway” (2021)

Stowaway 2021 Anna Kendrick0

Stowaway stars Anna Kendrick as Zoe Levenson, a medical researcher with a crew of three on a two-year mission to Mars. While traveling, they discover a stowaway (Shamir Anderson), which inadvertently caused critical damage to the ship’s life support system. While the team struggles to find a solution to their predicament, they must make difficult moral choices and deal with the consequences of their actions.

Stowaway is an extremely believable and logically based film,” rooseter7080 told Redditor. “It’s science fiction in the sense that the film’s narrative never took place in real life (much like aliens can exist in space, but are still considered fiction as of 2023).”

3 “Minority Report” (2002)

Tom Cruise in Minority Report (2002)
Image via 20th Century Fox

Minority report is Steven Spielbergscience fiction film featuring Tom Cruise like a police officer who is forced to flee when he is framed for a murder he has not yet committed. Before filming began, Spielberg brought together several technology experts to discuss what a realistic future might look like.

“I wanted all toys to come true someday,” Spielberg said.Rogert Ebert in an interview. He mostly achieved this, as the surveillance technology in the film and the ubiquitous mass media are not so far from our days. “Minority report (with the exception of the pre-gears) paints a pretty plausible future,” user AgentUpright said. “Half the technology they use in the film is what we already have.”

2 ‘Interstellar’ (2014)

Matthew McConaughey in Interstellar

Christopher Nolansci-fi grand opus follows Cooper (Matthew McConaughey), a former NASA pilot who embarks on a dangerous mission through a wormhole to find a new home for humanity. This is a real epic, both visually stunning and intellectually ambitious.

Interstellar is also pretty scientifically based - the black hole image is particularly noteworthy - though the interpretation of things at the end may be closer to science fiction than you’d like,” user AgentUpright said.

1 ‘Gravity’ (2013)

Two astronauts talking about repairs
Image via Warner Bros.

Alfonso CuaronX Gravity revolves around two astronauts who are stranded in space after a disaster destroyed their shuttle. Sandra Bullock Dr. Ryan Stone, a medical engineer on her first spaceflight, and George Clooney played by veteran astronaut Matt Kowalski. Aside from the technical challenges they face, Stone and Kowalski must also confront their fears and the possibility of never returning to Earth.

“An incredible set of events, but scientifically plausible,” user CJDownUnder said. Several scientists and astronauts praised the film’s realism. NASA astronaut Michael J. Massimosaid: “Everything was in place, nothing was missing. There was a one-of-a-kind wire cutter we used on one of my spacewalks, and of course that wire cutter was in the movie.”