Context of Requiem for a dream, Artisan Entertainment and Thousand Words present a Sibling/Protozoa production in association with Industry and Bandeira Entertainment ; a film by Darren Aronofsky ; executive producers, Nick Wechsler, Beau Flynn, Stefan Simchowitz ; produced by Eric Watson and Palmer West ; directed by Darren Aronofsky ; screenplay by Hubert Selby, Jr. and Darren Aronofsky