Trivia: At the end, Batty gives his 'a time to die' speech on the roof. Rutger Hauer made up the speech himself, between an hour and half an hour before filming the scene.
Trivia: In the scene where Ford and the other policeman take off in a police car, there is a shot of the inside of the car showing a computer screen with a flashing word "purge" on it. The screen was originally used in "Alien" when Ripley set off the shuttle to escape from Nostromo.
Trivia: In the scene where Daryl Hannah is startled by William Sanderson outside his home, she runs away toward his parked van and breaks a door window when she collides with it. If you look carefully you can see her slip off the wet curb at the same time. This was a real accident and Daryl Hannah continued with the scene because no one realized it at the time and Ridley Scott didn't yell,"Cut".
Trivia: The entire ending of the film, and other parts of the film was altered at the last minute. The test preview did not get the reaction the head of the studio paying for the film wanted. The audience just didn't get what Ridley Scott was calling "The dark side of comic strip" so they took control, and collaborating with Ridley Scott changed it to what it is today. 25 years on Ridley Scott will be re-releasing the original edit September 2007.
Trivia: Look at Priss' incept date, when shown on the monitor. It's the 14th of february 2016. Being the "basic pleasure model", she was born on Valentine's Day, of course.
Trivia: The chess game between Tyrell and Sebastian uses the conclusion of a game played between Anderssen and Kieseritzky, in London in 1851. It is considered one of the most brilliant games ever played, and is universally known as "The Immortal Game".
Trivia: When Deckard calls Rachel from the bar, he converses with her for roughly thirty seconds and then hangs up. The total cost of the call is $1.25, a possible comment on inflation perhaps?
Trivia: Dustin Hoffman was the original choice for the role of Deckard and was briefly cast in the role but dropped out. Director Ridley Scott then cast his second choice for the part, Harrison Ford.
Trivia: Just after Rachel asks Deckard that if she goes north, would he hunt her, he says no and then walks behind her. He is out of focus during this next part, but pay close attention as he says "but somebody would." His eyes can be seen glowing like the other replicants in that light, which is one of the clues people say leads them to believe he is also a replicant.
Trivia: In the final scenes in the first move version (before the Director's Cut) Deckard and Rachael fly over a landscape. Ridley Scott had run out of funds and time when bad weather had ruined the shooting of the landscape, no possibility to get new shots. The scenes thus used were outtakes from intro scenes of The Shining. These shots were removed in the Director's Cut.