20 Best Sci-Fi Movies Based on Actual Science, Ranked by Accuracy

In most cases, science fiction films err on the side of fiction rather than reality. Sometimes a film, such as Star Wars, is a fantasy film disguised as a sci-fi spectacle, or a film will deviate so far from genuine science that it is pure imagination. Occasionally, science movies will accurately incorporate genre tropes with elements of real-life physics, biology, quantum mechanics, etc. Science-related movies are often more enjoyable when they’re based on real science – not every sci-fi flick can pull it off.