
The Exorcist
William Friedkin · 1973
Friedkin inserts brief flashes of a demonic face throughout the film. You can see them if you freeze the frame. In motion, they only register subliminally, meaning below conscious notice. You are left with a constant sense of an evil presence just under the surface of what you normally see.
Where to see it: The demon face flash during Father Karras's nightmare. It is a single frame of a white-painted evil face. You sense it without being able to say what it was.

