The images below are actually found in SFMZ's Enhanced Script Presentation with subtle changes photoshopped in. Sneaky, I know, but at least I am admitting it here. Here's six of the screenshots that were altered. There's a few more in that presentation, but I will let you have the fun of spotting the altered screenshots.
Altercation: I blended in the old pendant Father Merrin had discovered moments later, to look like a part of the ancient structure.
Altercation: While the National Graphic magazine is in the original screenshot, I altered the cover to give the impression Momma Karras has been reading about Merrin's Pazuzu statue dig.
It seems Karl was wrong, there really were rats in the attic after all (look in the upper left corner).
Altercation: The original screenshot shows stained-glass panels of five saints. I replaced one of the saints with Satan.
Altercation: The Demon Regan is hiding behind the curtains watching the hypnotism. But look closely, she can only be seen in the mirror reflection of the curtains.
Altercation: Hard to detect, but the garden just outside the window, look closely at the green foilage and you will see the Regan demon.
There are six more altered screenshots in the enhanced presentation, enjoy the hunt!