Good choice @ShayP , but I think this character lacks sufficient intellectual ability to know of Warhol. ( Damn it takes a lot of words now when we used to just say retard when we meant stupid people.)
LOL!
@juan For our conversation, let's keep it simple and go with 'retard.'
How about Citizen Kane? Black and white film. Perhaps the character has never seen one but hears it's a classic? The best. The character in your book is *clears throat* a retard and doesn't understand any of the movie but the cinematography is hypnotic. "Rosebud" blows his mind. He somehow thinks Rosebud is a type of weed.
I don't know. Just throwing some things out there.