Watch Aphrodisiac!: The Sexual Secret of Marijuana (1971) full hd online Directed by Dennis Van Zak. With Harry J. Anslinger, Fiorello LaGuardia, Maria Arnold, Andy Bellamy. A film examining the use of marijuana by young people in the late 1960s and early 1970s. Included are interviews with people who regularly use marijuana and testify to its beneficial effects as an aphrodisiac (hence the hardcore footage) and scenes of nude encounter groups, instructions for making marijuana brownies, soldiers in Vietnam smoking marijuana, etc.