If Professor Stephen Hawking is correct, Interstellar was right: Falling into a black hole is not the end.
Black holes are stars that have collapsed under their own gravity, producing such extreme forces that even light can't escape.
In the film Interstellar, Cooper, played by Matthew McConaughey, plunges into the black hole Gargantua.
As Cooper's ship breaks apart in the force, he evacuates and ends up in a Tesseract - a four dimensional cube. He eventually makes it out of the black hole.