'Every kid knows the thrill of vicariously experiencing a movie they're way too young to see, thanks to a little imagination and an easily accessible slice of cultural ephemera. It could be a rubber Halloween mask from some gory horror flick, a pop smash that soundtracks a steamy romantic thriller, or a meme of a crazed clown shimmying down a New York stairway – irresistible invitations to illicit, R-rated netherworlds.' (Introduction)