20 Things You Didn't Know About The Exorcist
9. Max Von Sydow Forgot His Lines In A Scene With Linda Blair
Whilst we are familiar with the demonic Regan's expletive-laden rant, actor Max Von Sydow forgot his lines the first time he was on the receiving end of it.
Keep in mind that this was the unedited version of the demon's speech. Shot before voice actress Mercedes McCambridge was brought in to record Regan's voice, the then 13-year-old Linda Blair's delivery was so disturbing that it caused a seasoned professional like Sydow to forget his lines.
As amazing as McCambridge's voice for Regan is, it would have been cool to have a version of the scene where Blair's own voice rips into Sydow. Anything that leaves an actor of Sydow's stock lost for words needs to be seen to be believed.