Step aside, "Paranormal Activity 4," because while found footage may be all the rage in horror movies these days, Bloody Disgusting has literally found some footage proving that nearly 40 years later, nothing offers up real scares quite like "The Exorcist."

You just can't beat the original.

And you also can't beat this ultra-rare, never before seen test footage from the making of "The Exorcist," which was discovered languishing in a dusty old 16mm reel case. Featuring Linda Blair and a gentleman who appears to be "The Exorcist" author William Peter Blatty, the clip shows Linda floating, spinning and being jerked around like a human puppet by unseen hands.

Check it out and get ready to be creeped out by some real found footage.