D.C. cab [MP] 1983: credits (Joel Schumacher, director)

Mo. pic. alm., 1991: (Schumacher, Joel; b. 1939; writer, mo. pic. director, started in mo. pic. industry as costume designer)

Wikipedia, January 20, 2015 (Joel Schumacher; Joel T. Schumacher (born August 29, 1939) is an American film director, screenwriter, and producer; born New York City, New York; has been openly gay throughout most of his career)

Hollywood Reporter, dated and viewed June 22, 2020: (Joel Schumacher, writer-director, former costume designer; died Monday [June 22, 2020], New York City)