The Interstellar meaning and movie explanation. Set in a future where a failing Earth puts humanity on the brink of extinction, it... No Film School Show all Time Dilation: One of the most famous aspects of the film is gravitational time dilation. On Miller's Planet, which orbits close to a supermassive black hole named Gargantua, one hour equals seven years on Earth. This is a real concept based on Einstein’s General Relativity, where time passes slower in stronger gravitational fields. The Wormhole: A "shortcut" through spacetime, allowing travel between distant galaxies. In the film, it was placed near Saturn by "They"—beings from the future. The Tesseract: A five-dimensional space where time is represented as a physical dimension. Cooper uses this to communicate with his daughter, Murph, in the past by manipulating gravity across time. Reddit +8 Key Themes and Ending The Power of Love: While a sci-fi film,