The famous Jesus illusion

The famous Jesus illusion is a screamer video uploaded by geno2k3. It was originally uploaded on Apr 2, 2008, and has a run time of 32 seconds.

The video instructs the viewer to look at the dots in the center of the picture for 30 secs and look away from the screen. At 23 seconds in a picture of Regan MacNeil from The Exorcist (film) pops up, accompanied by a low-quality sound effect of the Doomguy's death scream from the 1993 first-person shooter game DOOM.

Links
NOTE : The following video contains a screamer!
 * youtube.com/watch?v=UYC1EfBmja8