20 Scariest Movies of All Time According to Screenrant

"From the depiction of eerie supernatural forces, demonic possession, cults, and masked killers, the best horror movies have the unique ability to terrify, unnerve, and linger in the minds of viewers long after the credits roll. The experimentation with fear in these movies is what makes them so compelling, and has contributed to them being cemented in cinematic history. What makes these movies so scary is not just the use of blood, gore, and violence, but the deeply unsettling atmosphere that they can create. Through sound design and dark visuals, a movie may be able to create a greater atmosphere of fear than the goriest of movies. This list has been compiled by looking at how scary these movies are by contemporary standards, and how scary they were when they were first released. Many of these movies were unprecedentedly horrifying in their era, and all of them deserve a spot in the pantheon of scariest of all time." - screenrant.com