This document provides a summary and analysis of the differences between the novel "Do Androids Dream of Electric Sheep?" and the film adaptation "Blade Runner". It notes that while they share the core concept of a bounty hunter pursuing escaped humanoid robots, the film changed many aspects of the novel to reflect different historical contexts and the capabilities of different mediums. Some key differences discussed include the post-apocalyptic setting of the novel versus the overpopulated megacity of the film, and the more sympathetic and humanizing portrayal of androids in the film compared to the novel. The document analyzes how these changes reflected the differing fears and societal issues of when each work was created.