* CelebrityVoiceActor: In the 1997 [[VideoGame/BladeRunner video game]], several characters are voiced by the actors who played them in the film.
* CompletelyDifferentTitle:
** ''Exterminator'' (Croatia)
** ''Calls Himself RNR'' (Bulgaria)
** ''The Relentless Hunter'' (Venezuela)
** ''Imminent Danger'' (Portugal)
** ''Bounty Hunter'' (Romania)
** ''The Winged Bounty Hunter'' (Hungary).
* {{Defictionalization}}:
** Deckard's whiskey glasses and bottle, trenchcoat and even the tiles in his apartment have been made into real (albeit [[CrackIsCheaper insanely expensive)]] products. Even the [[http://www.thinkgeek.com/homeoffice/gear/d163/ neon light umbrellas]] are available from Thinkgeek (albeit the Thinkgeek versions are. more practical LED/fiber-optic rather then neon tubes).
** The police offices constructed in Union Station, Los Angeles for the filming still stand till today, in use as station offices. The crew was able to get a little bit of a discount if Union Station officials agreed to keep the set for practical use after filming was over.
** Some cities, [[https://www.google.com/search?q=shanghai+looks+like+blade+runner particularly]] {{Shanghai}}, look more and more like ''Blade Runner'' every year.
* EnforcedMethodActing: The scene with Chew was shot in a freezer and was ice cold, so the cast really were shivering.
* ExecutiveMeddling: The ending in the original movie was changed by higher-ups due to its ambiguity, and narration was added to help dispel the ambiguity evident in most of the movie itself. The original ending has been restored and the narration deleted in the DirectorsCut.
* FlipFlopOfGod:
** Is Deckard a replicant? Director Creator/RidleyScott and lead actor Creator/HarrisonFord, as well as screenwriters Hampton Fancher and David Peoples have all had contrasting views on the subject. Scott says yes; Ford and the screenwriters say no. The novel on which the films based, ''Literature/DoAndroidsDreamOfElectricSheep'', has several strong hints that [[spoiler: he is in fact human.]]
** More solidified now in that it's generally agreed upon that he is human in the theatrical cut and a replicant in the directors
* HeyItsThatGuy:
** Edward James Olmos in the role that made him famous (well, sort of) as Gaff. He only appears about three times, but he's got the [[ImpossiblyCoolClothes best outfit in the movie]] and gets one of its last, and best, lines. If [[spoiler:Deckard is a replicant himself]], Gaff is presumably his human handler and the model for some of his fake memories.
** Bryant is played by M. Emmett Walsh, who's been one of the ultimate 'That Guy's' over countless films, usually playing some sort of sleazy, amoral character.
* HeyItsThatVoice: In the [[VideoGame/BladeRunner 1997 video game]]:
** Crystal Steele is voiced by Lisa Edelstein
** Rachael, Leon, Tyrell, Chew, and J.F. Sebastian are all voiced by the cast members of the film. The only exception is Gaff.
* PropRecycling:
** The spinners' dashboard displays are taken from ''Film/{{Alien}}''. Creator/RidleyScott directed both films, so this may actually be a ShoutOut.
** The very top of the roof of the police headquarters building was originally the ceiling of the Mothership interior from ''Film/CloseEncountersOfTheThirdKind''. The building itself is rather similar to the Tower of Babel as depicted in {{Film/Metropolis}}
** One of the buildings next door to the police station is a model of the [[Franchise/StarWars Millennium Falcon]] tilted vertically and covered with Christmas lights.
** The ''Film/DarkStar'' miniature can be seen in the background near the police station as well.
** Additionally, later sci-fi films would sometimes recycle props and set pieces from this one. Be on the lookout for a spinner in the junkyard in ''Film/{{Soldier}}'', and check out Craig Bierko's apartment in ''TheThirteenthFloor''.
** Some of the Lord of Darkness' palace interiors from ''Film/{{Legend}}'' (most notably, the huge, spiraling columns) were featured in this film.
* ThrowItIn: There are a few ad-libbed lines, most notably in the FinalWords of both Leon and Roy Batty.
** Daryl Hannah really slipped and smashed her elbow throw a car window, chipping said elbow in eight places.
** Rachael initially believed herself to be human, based on memories duplicated from Tyrell's niece (named Sarah in the novels).
** Depending on the version, Deckard is hinted to various degrees to be a replicant with false memories himself, something that was overtly teased in the novelization. The film's director Creator/RidleyScott says he is, while Harrison Ford and both of the film's writers say he is not. That particular argument is [[InternetBackdraft a good way to make enemies]] in the fandom. It's ''that'' divisive.
** Additional behind-the-scenes material on the [=DVDs=] reveals that the movie script contained a scene in which [[spoiler:Roy Batty, after killing Tyrell, enters a lab adjacent to Tyrell's penthouse apartment and finds out that the ''real'' scientist Tyrell was in cryogenic suspension, suffering from a deadly disease, which he hoped would be curable in the future; Roy Batty finds a cloning chamber and evidence that the "Tyrell" he killed was also merely a replicant, programmed with Tyrell's memories to pose as him.]]
* TroubledProduction: One of the most (in)famous in movie history.
* WhatCouldHaveBeen:
** In the early 1970s, a relatively unknown young director named ''Creator/MartinScorsese'' was in line to direct the film.
** This was offered to Creator/RalphBakshi. He passed on it, but recommended Ridley Scott for the director's chair. And the rest is history...
** DustinHoffman was originally cast as Deckard. Scott intended to subvert the typical image of the burly HardboiledDetective, and Hoffman would fit that well. This period of the film's pre-production got so far that even some of the early storyboards featured Hoffman's likeness on images of Deckard.
** An earlier draft of the script, called "Dangerous Days" would have been a far more action-packed affair, including a famous unused scene where Deckard shot a seemingly innocuous man, then took his skull apart to reveal mechanical components.
* WordOfSaintPaul: Creator/HarrisonFord has stated that he believed Deckard to not be a replicant, as being one would undercut the theme of his character rediscovering his own humanity, and turns the man vs. machine climactic battle into a robot vs. robot fight. Creator/RidleyScott on the other hand, claims that Deckard was always meant to be a replicant. After the DirectorsCut, Ford changed his stance and now says Deckard is a Replicant.

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