Ralph MetznerActorFilmography (4)Neurons to Nirvana (2013, ★ 6.9)Hofmann's Potion: The Pioneers of LSD (2002, ★ 5.6)DMT: The Spirit Molecule (2010, ★ 6.1)Peyote to LSD: A Psychedelic Odyssey (2008, ★ 5.6)
