21 Amazing Psychedelic Horror Films

MacBeth (1971)

Oh, you don't think Shakespeare belongs on a list of psychedelic horror? Well then treat yourself with a viewing of Roman Polanski's 1971 adaption of the Scottish Play, his first film following his pregnant wife's death at the hands of the Manson family. His take on this classic tale of witchcraft, prophesy and murder channels some wonderfully mind-warping imagery -- from Macbeth's vision of the future to his post-decapitation POV shot. "What, will the line stretch out to th' crack of doom?"

About the Author: Robert Lamb spent his childhood reading books and staring into the woods — first in Newfoundland, Canada and then in rural Tennessee. There was also a long stretch in which he was terrified of alien abduction. He earned a degree in creative writing. He taught high school and then attended journalism school. He wrote for the smallest of small-town newspapers before finally becoming a full-time science writer and podcaster. He’s currently a senior writer at HowStuffWorks and has co-hosted the science podcast Stuff to Blow Your Mind since its inception in 2010. In his spare time, he enjoys traveling with his wife Bonnie, discussing dinosaurs with his son Bastian and crafting the occasional work of fiction.