And while those movies are, for better or worse, the legacy of this director, his most underrated masterpiece is the 1990 fantastical thriller, Flatliners. While the premise has a supernatural feeling to it, close to something out of a Stephen King novel, ultimately, Flatliners feels closer to science fiction than outright horror or fantasy. And, in this way, Flatliners asserts that some hallucinations aren’t unreal per se, but rather, just parts of a wider range of sensory experiences we can’t access all the time. Overall, the triumph of Flatliners today is that it doesn’t really feel like it fits neatly into any one genre. It may be a movie about near-death, but ultimately, the movie pulls back the curtain on a part of life we can’t really imagine.