The 30 Best Horror Movies of All-Time, According to Rotten Tomatoes

30. It (2017)

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Was there ever a doubt that an article about horror movies would include a story about a killer clown? Based on Stephen King’s novel of the same name, 2017’s It is one of the best horror films of the past decade. Set in a small Maine town named Derry, a group of kids are tormented by an evil, shape-shifting clown named Pennywise. This movie is downright creepy and often terrifying. Bill Skarsgard gives a haunting performance as the Dancing Clown — a performance that will linger in your mind long after watching the film. Good luck sleeping well after seeing Pennywise’s ghoulish smile.