Which director, Piers Haggard or Penelope Spheeris, is best known as a documentary film director whose works include the trilogy titled "The Decline of Western Civilization"?
Piers Haggard Piers Inigo Haggard OBE (born 18 March 1939) is a British theatre, film and television director, although he has worked mostly in the latter.
Penelope Leach Penelope Jane Leach (née Balchin; born November 19, 1937), is a British psychologist who researches and writes extensively on parenting issues from a child development perspective.