Emerson Presents—Film Historian Eric Schaefer in Person. I was fortunate enough to call exploitation producer David F. Friedman (1923-2011) a friend and mentor for almost 25 years. The self-proclaimed “Mighty Monarch of the Exploitation Film World,” Friedman was a pioneer in the field throughout his long career. For Scum of the Earth he teamed with director Herschell Gordon Lewis for a cautionary tale about a college-bound girl drawn into the “dirty pictures” racket. –Eric Schaefer