Considered the greatest cult movie of all time, "Eraserhead" is not your average horror movie. The film employs bizarre imagery to create a deeply unsettling tone. We dare you to not reach for the remote in the scene of Eraserhead trying to feed his misshapen "son." It might go down in history as the single most disturbing movie scene ever. Even by art-house standards, this flick is a tough pill to swallow.