After talking to Linda Blair and the crew of The Exorcist, it became obvious that The Exorcist faced more danger in the form of hypothermia and back-firing special effects than foul play by evil spirits.

The upcoming Exorcist Blu-ray (which you can win copies of today!) showcases the innovative techniques that went into producing one of cinema's scariest tales, includnig director William Friedkin's commitment to shooting his prologue opening in the actual location it was set: Iraq. You could see how that might be a difficulty in itself.

Watch this exclusive clip of Friedkin describing the challenges he faced shooting in the Middle East with the esteemed Max von Sydow, then pick up the Blu-ray when it hits shelves today, October 5th.

See More: The Exorcist | Blu-ray | Blu-sday | Max Von Sydow | William Friedkin