How do you know you are human? Is it biology? Or perhaps chemistry? What sort of conditions, memories, examination (like the Turing test), knowledge, etc. would qualify you as human? Suppose you could duplicate somebody down to the last chromosome, last atom, identical DNA strands. Are you human? Who cares? It is humanity that has conjured up the definition and wants to maintain the purity of the species. Interlopers are to eradicated. Such is the case for Roy Batty (Rutger Hauer) who is being hunted by Rick Deckard (Harrison Ford). Batty wants to be human in the eyes of those born of woman before he dies. Deckard wants to retire him.

Director:  Ridley Scott Writer:  Philip K. Dick; Hampton Fancher; David Webb Peoples; Roland Kibbee Cast:
Harrison Ford -  Rick Deckard Rutger Hauer -  Roy Batty Sean Young -  Rachael Edward James Olmos -  Gaff M. Emmet Walsh -  Bryant Daryl Hannah -  Pris William Sanderson -  J.F. Sebastian Brion James -  Leon Kowalski		Joe Turkel -  Eldon Tyrell Joanna Cassidy -  Zhora James Hong -  Hannibal Chew Morgan Paull -  Holden Kevin Thompson -  Bear John Edward Allen -  Kaiser Hy Pyke -  Taffey Lewis Kimiko Hiroshige -  Cambodian lady