Although its initial release was a disappointment, this "future noir" about a hard-boiled android hunter and his beyond-human prey has become one of the most influential science fiction movies, thanks to its sleek cinematography, dystopic production design, and enigmatic, philosophical narrative. "Blade runner" Rick Deckard (Harrison Ford) is called out of retirement to track down and eliminate a team of replicants, humanoid androids that have escaped from an outer space mining colony and taken refuge on earth. During his search for the fugitives, in which he must try to separate the humans from the replicants, he discovers hidden secrets about the replicants' manufacturer, the Tyrell Corporation. In 1992, the 10-year anniversary of this landmark science fiction film was celebrated with the release of Blade Runner: The Director's Cut, which removed several changes imposed by the studio during the film's initial release. Several brief special-effects sequences are added, highlighting the achievements of cinematographer Jordan Cronenweth and special effects supervisor Douglas Trumbull, but the most notable changes are the restoration of the film's intended ending and the removal of Ford's noirish voiceover. The plot, loosely derived from Philip K. Dick's novel Do Androids Dream of Electric Sheep? by screenwriters David Webb Peoples and Hampton Fancher, remained the same.