Famous Horror Movie Scenes That Were Completely Improvised – Looper

The majority of the entries on this list involve human ingenuity: Thespians who are quick on their feet, swift of mind, and creatively gifted. This is a story about human error. As described in the very long (and very good) making-of documentary "Never Sleep Again: The Elm Street Legacy," the scene in Wes Craven's "Nightmare on Elm Street" where a snoozing Glen Lantz (Johnny Depp) is sucked through his bed didn't go exactly as planned.

In the scene, a geyser of blood emerges from the bed after it "consumes" the teen. And just when you think "yeah, okay, I can get behind this," gravity stops working. Pooling on the ceiling, the blood begins to slosh from wall to wall like a crimson tide. It's an uncanny scene that perfectly captures the nightmare logic Freddy thrives on.

But filming the scene was a nightmare unto itself. The sequence was shot in a rotating room that was flipped upside down. The mission was simple: Pour fake blood into a hole and film it. The first problem was that they poured the red liquid onto a lamp, which electrocuted a crew member. As if that weren't bad enough, the now-electrified blood caused the room to roll all the way over. As Craven recalls in the documentary, the water "went into all the lights and there were these huge flashes in the dark ... we were spinning in the dark with all these sparks going on." All told, no one was seriously injured and the filmmakers were left with a trippier sequence than they'd expected. So, we're counting that as a win.

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Famous Horror Movie Scenes That Were Completely Improvised - Looper