"How do we define "cosmic horror?" To start, we'll have to travel back to the 1920s, when a prominent figure in the horror community was churning out tales like The Call of Cthulhu and The Dunwich Horror. H P Lovecraft was known for mind-bending fiction, which called upon horrors beyond human comprehension.
Cthulhu, the fish people of Innsmouth, the titular Hound – they're impossibilities that force us to consider our place in the universe.
That, in an essence, is cosmic horror. It confronts us with monstrosities beyond our comprehension and intends to make us feel cosmically insignificant. For the best cosmic horror movies, you'll want to work your way through this list of the mind-melting works inspired by Lovecraft's work, as well as where you can watch them online."