In the mid-21st century, crop blights and dust storms threaten humanity's survival. Joseph Cooper (Matthew McConaughey), a widowed Engineer and former NASA pilot, runs a farm with his father-in-law Donald (John Lithgow), son Tom (Timothée Chalamet), and daughter Murphy (Mackenzie Foy). Living in a post-truth society, Cooper is reprimanded for telling Murphy that the Apollo missions were not fake; he encourages her to carefully observe and record what she sees. They discover that dust patterns, which Murphy first attributes to a ghost, result from gravity variations, and translate into geographic coordinates. These lead them to a secret NASA facility headed by Cooper's former supervisor, Professor John Brand (Michael Caine), who explains that 48 years earlier a wormhole appeared near Saturn, opening a path to a distant galaxy with twelve potentially habitable planets located near a black hole named "Gargantua". Volunteers had previously traveled through the wormhole to evaluate the planets, with Miller, Edmunds, and Mann (Matt Damon) reporting back desirable results. Plan A attempts to develop a new gravitational propulsion theory, allowing a mass exodus from Earth. Plan B is a conventional launch of the Endurance spacecraft with 5,000 frozen embryos to colonize a habitable planet and ensure humanity's survival. Cooper is recruited to pilot the Endurance. When Murphy refuses to see him off, he leaves her his wristwatch to compare their relative time when he returns.
The crew consists of Cooper, the robots TARS and CASE, and the scientists Dr. Amelia Brand (Anne Hathaway) – Professor Brand's daughter –, Romilly (David Gyasi), and Doyle (Wes Bentley). After traversing the wormhole, Cooper, Doyle, and Brand use a Lander to investigate Miller's planet, where time is severely dilated. After landing in knee-high water and finding only wreckage from Miller's expedition, a gigantic tidal wave waterlogs the lander's engines, killing Doyle in the process. By the time the engines restart, Cooper and Brand discover that 23 years have elapsed on the Endurance. Having enough fuel for only one of the other two planets, they vote to go to Mann's, as he is still broadcasting. En route, they receive messages from Earth. Murphy Cooper (Jessica Chastain) is now a scientist working on Plan A. On his deathbed, Professor Brand revealed to her that Plan B was his only real plan, knowing that Plan A was not feasible without observations of gravitational singularities from within a black hole.
When 'Interstellar' was released, the momentum was amazing. It was all due to the famous theoretical physicist and relativity expert Kipp. Kip Thorne (1940 -) who sat in as scientific advisor. This film is absolutely the best attempt to reproduce Einstein's general relativity effect on the screen. As he flies over the black hole, the gravity of the black hole slows down the time the protagonist experiences. He will definitely make the physics fans smile while watching. Thorne used computer simulations to perfectly display Einstein's field equations that describe the interaction between time and space and the quality of the film, creating the most scientific black hole in film history.