Blade Runner

Director Sir Ridley Scott and director of photography Jordan Cronenweth achieved the famous "shining eyes" effect by using a technique invented by Fritz Lang known as the "Schüfftan Process": light is bounced into the actors' and actresses' eyes off of a piece of half mirrored glass mounted at a forty-five-degree angle to the camera.

(at around 14 mins) Bryant tells Deckard that six replicants escaped from an Off-World colony. One was killed trying to break into Tyrell's, and the others escaped. However, there are only four replicants in the film (Roy, Leon, Zhora and Pris); if one goes by Bryant's dialogue, there should be five. This infamous goof has been corrected in the 2007 Final Cut where Bryant now says that two replicants were killed trying to break into Tyrell's.

In the "happy ending" Theatrical/International cuts, the credits play over the gorgeous scenery. In later Director/Final cuts, they play over a normal black background.

All U.S video tape releases before January 1993 are the unrated version and contain the extra violence in the Euro-release that's not seen in the 117 minute American theatrical release:

• When Roy attacks Tyrell we clearly see him pushing his thumbs into Tyrell's eyes, and blood spurting out
• When Pris (Daryl Hannah) attacks Deckard, she reaches down and grabs him by the nostrils
• When Deckard shoots Pris, he shoots 3 times instead of 2
• When Roy pushes the nail through his hand, there is a shot of the nail coming through the skin on the other side.

Edited into 5 Second Movies: Blade Runner (2009)