Taboo breakers and trendsetters, shameless hucksters and famous directors. Exploitation filmmaking has seen it all. Fred Olen Ray made his first movie for $298. In 1936 Marijuana-Weed with Roots in Hell showed drug use and nudity on screen in an effort to "educate the public." Kroger Babb, the man behind Mom and Dad, spliced color medical footage of a baby's birth into his black and white "classic." Russ Meyer, John Waters,...