The omission of Deckard’s wife, along with Roy’s, Iran, means that both of these characters are free to be with other women in the film. Rachael is made to be more of a love interest than the femme fatale of the novel who pushes his goat off the roof, and Pris is a lot friendlier with Roy.
Speaking of goats, the book places a lot more emphasis on animals, both real and electric. This is evident from the change of title when it was adapted for the cinema. There is a longing for real animals, a rarity since the ‘World War Terminus’ which left the Earth covered with a layer of contaminated dust, destroying most animal life on the planet. Animals are seen as status symbols as they are extremely expensive, and those who cannot afford them buy electric ones instead, almost as realistic but not a proper substitute. Deckard’s motivation in the novel for retiring the androids is to get enough money to buy a real sheep to keep on the roof of his apartment and make his wife happy. In Blade Runner he has quit his job but is blackmailed into returning because he’s seen as the only one who can do it.
The almost deserted San Francisco of Do Androids Dream of Electric Sheep? relocates to Los Angeles and is over-populated with people of all cultures. J. R. Isidore becomes J. F. Sebastian, and rather than driving a truck for a false-animal repair firm, he is a genetic designer. In the novel he is a ‘chickenhead’, someone who has been contaminated by the dust. In the film he has a disease that accelerates his aging, giving him something in common with the replicants who also have a limited life-span.
Philip K. Dick’s androids were emotionless beings, heartless and selfish. They were considered to be less than human and were ultimately dispatched with quite easily by Deckard. In comparison, Ridley Scott’s replicants were superhuman. They were more intelligent, stronger, faster and considered superior to humans. They were a lot harder to retire and had the capacity to develop feelings and emotions. Some become “more human than human”: the motto of the corporation that created them.
The movie and the novel are clearly separate works of art. While Blade Runner is not a wholly faithful adaptation, it is still an exceptional film: a thought-provoking vision of the future dealing with themes of existentialism and what it means to be human. In this way, the book and the film perfectly complement each other. The film is a visual feast but is somewhat lacking in narrative, the book provides rich detail and many extra interesting aspects about the dystopian future world. When you experience both, you feel like you have a complete view of the story.

