1. The Domestic Cut-Opened nationwide in 1,290 theaters on June 25th, 1982

2. The Director's Cut - Released on September 11, 1992 to fifty-eight theaters around the U.S. and later on video, laser disc & most recently on DVD.

3. The Workprint - Shown the night of March 5, 1982 at the Continental Theater in Denver & also shown the following evening, March 6, at the Northpark Cinema in Dallas. Resurfaced in 1990 at the Fairfax Theater in Los Angeles, during a spring classic film festival. It was also shown in 1991 at the Academy of Motion Picture Arts & Sciences theater, at an event called the UCLA Los Angeles Perspectives Film Festival, plus shown at the NuArt in L.A. and the Castro Theater in San Francisco that same year.

4. The San Diego Sneak Preview - Shown the night of May 8th, 1982 at the Cinema 21 Theater in San Diego, CA.
   
   

5. The International Cut - Shown outside the U.S. in 1982 and later released on video and laser disc.

6. The Broadcast Version - First aired on February 8, 1986 on the CBS television network and occasionally pops up on local TV stations.

7. DVD Collector's Set (limited edition) - It's not really a different version, but a package for collectors that includes the movie and some gadgets.

8. 10th anniversary - Released in 1992 for the 10th anniversary from the born of B.R..

The Domestic Cut - Not that many differences.

• The 3 extra shots that were seen in the San Diego Sneak were cut from the film.
• Added the close-up of Batty's head and spasming hand in the VidPhon booth.
• Deckard's wall to wall narration & happy ending were included.

View the VHS Cover

The Director's Cut - This version has 4 major differences.

• Deckard's narration is removed.
• The extra violence seen in the International Cut was cut from this version.
• No happy ending scene
• Features a unicorn vision while Deckard is drunk & playing the piano. This is not found in any other version.

VHS Cover - DVD Cover - Movie's poster
Cover of the American Wide Sreen version

The Workprint - Contains the most, with at least 70 sound and video variations, of which, I will list a few key ones.

• Deckard's narration is absent until after Batty says "time to die", and then Deckard narrates: "I watched him die all night. It was a long, slow thing and he fought it all the way. He never whimpered and he never quit. He took all the time he had as though he loved life very much. Every second of it...even the pain. Then he was dead".
• Two full screen shots of the giant starring eye are omitted.
• This version has a darker and grainier look to it, making the rain and darkness more prevalent throughout.
• Flight to Police HQ includes dialogue of Gaff insulting Deckard in Cityspeak.
• Captain Bryant informs Deckard that not one but two replicants "got fried running through an electrical field" at the Tyrell Corp. Which accounts for the missing 6th replicant.
• No unicorn shot in this version and also no Vangelis music heard while Deckard plays the piano.
• The scene with Batty and Tyrell has Batty saying: "I want more life, Father" instead of, "I want more life, fucker". This take was intended for the TV version.
• The close-ups of the nail pushing through Batty's hand are omitted.
• No "happy ending" in this version.

The San Diego Sneak Preview - Features 3 extra shots found in no other version.

• Roy Batty is introduced standing in the VidPhon booth in a full shot, talking to someone on the telephone. The close-up shot of Batty's hand is gone in this version.
• During the showdown between Batty & Deckard, this version shows Deckard reloading his gun after getting his two fingers broke.
• Features the happy ending.
• A high-angled shot of Deckard's sedan driving along a road through a forest during the "happy ending".
• This version also includes Deckard's wall to wall narration.

The International Cut - This is a more violent version of the film and is the BR version seen by most.

• Tyrell's death scene is more graphic with two additional shots of Batty's thumbs poking Tyrell's eyes.
• Additional footage of the fight between Deckard and Pris. This version shows Pris inserting two fingers into Deckard's nose and pulling it backward. It also shows Deckard shooting Pris 3 times to kill her, whereas the Domestic & Director's Cut versions only show him shooting her twice.
• Additional shot of Batty pushing the nail through the palm of his hand and then showing it come through the back of it.
• Deckard's narration and happy ending included.   

The Broadcast Version - Same as the Domestic Cut except that most of the violence was removed and the swearing eliminated.

• Bryant's line "Don't be an asshole, Deckard" was changed to "Don't be an ass, Deckard".
• "Christ" was removed from Bryant's line "Christ, Deckard, you look almost as bad as that skin job you left on the sidewalk.
• The "goddamn" was cut from Bryant's line "He's a goddamn one-man slaughterhouse".
• "I want more life, fucker" was changed to "I want more life" during Batty's visit with Tyrell.
• Zhora's nudity was removed by zooming in and cropping the image of her breasts in her dressing room.

DVD Collector's Set - this package includes:

• Region 1 encoding (US and Canada only)
  
• Color, Closed-captioned, Dolby, Widescreen, Box set
  
• Production notes
  
• Director's Cut
  
• 8 Original Limited Edition Lobby Cards
  
• Exclusive Limited Edition Senitype image from movie with 35mm Film Frame
  
• Original One Sheet Movie Poster (27x40)
  
• Full-screen and widescreen letterbox formats

For more info about the package you could look HERE.

10th anniversary - It was released by New Line Home Video after 10 years from the born of Blade Runner, in the 1992. This edition is not really a different version, it's the International Cur with a different cover. There are no added scenes or gadgets of some sort. The only difference is the cover art!

 

Available supports: Tapes - Laser Discs - DVD

Tapes

• Blade Runner - VHS hi-fi, stereo, pan and scan copy of the International Cut.
  1983 Embassy Home Entertainment 116 min., 58 sec. Color. Not rated.
  Availability: Discontinued
  
  
• Blade Runner - Beta hi-fi, stereo , pan and scan copy of the International Cut.
  1986 Embassy Home Entertainment 116 min., 58 sec. Color. Not rated.
  Availability: Discontinued
  
  
• Blade Runner - VHS hi-fi, Dolby stereo, Surround Sound, pan and scan copy of the International Cut.
  1986 Embassy Home Entertainment 116 min., 58 sec. Color. Not rated.
  Availability: Discontinued
  
  
• Blade Runner - VHS hi-fi, Dolby stereo, Surround Sound, pan and scan copy of the International Cut.
  1987 Nelson Entertainment 116 min., 58 sec. Color. Not rated
  Availability: Discontinued
  
  
• Blade Runner 10 Anniversary Edition - VHS hi-fi, Dolby stereo, Surround Sound, pan and scan copy of the International
  Cut.
  1992 New Line Home Video 116 min., 58 sec. Color. Not rated
  Availability: Discontinued
  
  
• Blade Runner The Director's Cut - VHS hi-fi, Dolby stereo, Surround Sound, wide screen copy of the Director's Cut.
  1993 Warner Home Video 116 min., 6 sec. Color. CC (closed caption) R-rated.
  Availability: Still widely available

Laser Discs

• Blade Runner - 1 disc, analog stereo, SP, extended play (CLV). Pan-and-scan version of the the original American Theatrical Release using a true aspect ratio 1.24:1
  1983 Embassy Home Entertainment 116 min., 43sec. Color. R-rated (the jacket shows it as "NR")
  Availability: Discontinued

• Blade Runner - 1 disc, CX/analog stereo, Surround Sound, SP, extended play (CLV). Pan-and-scan version of the the original American Theatrical Release using a true aspect ratio 1.24:1
  1987 Embassy Home Entertainment/Nelson Entertainment 116 min., 43sec. Color. R-rated (the jacket shows it as "NR")
  Availability: Discontinued

• Blade Runner (Japan) - 1 disc, digital stereo, extended play (CLV). Little information is known about this disc.
  Year unknown
  Availability: Unknown

• Blade Runner - 2 discs, stereo, Surround Sound, full feature format (CAV), chapter stops, CX/analog stereo encoding, Videoscope (letterboxed) version of The International Cut. Features 6 supplements, including a "Syd Mead Galllery", "A Fan's Notes", "The Blade Runner Trivia Test", "Annotated Bibliography" & "Syd Mead Reprise". True aspect ratio 2.50:1
  1987 The Criterion Collection 116 min., 58 sec. NR
  Availability: Discontinued

• Blade Runner - 1 disc, stereo, Surround Sound, extended play format (CLV), chapter stops, CX/analog stereo encoding, Videoscope (letterboxed) version of The International Cut. True aspect ratio 2.50:1
  1987 The Criterion Collection 116 min., 58 sec. NR
  Availability: Discontinued

• Blade Runner (Japan) - 2 discs, digital stereo, Surround Sound, full feature format (CAV), chapter stops, CX encoded. Videoscope (letterboxed) version of The International Cut. Features 2 supplements. True aspect ratio 2.41:1
  1987 Warner Home Video 116 min., 58 sec. NR
  Availability: Discontinued

• Blade Runner - 2 discs, digital stereo, Surround Sound, digitally mastered video, full feature (CAV), CX/analog stereo encoded, chapter stops. Widesreeen (letterboxed) version of The Director's Cut. True aspect ratio 2.41:1
  1993 Warner Home Video 116 min. 12 sec. Color. R-rated. CC (closed caption).
  Availability: ?

• Blade Runner (Japan) - 1 disc, digital stereo, digital Surround Sound,  standard play (CLV), CX encoded. Wide Screen (windowboxed) version of The Director's Cut. True aspect ratio 2.41:1
  1993 Warner Home Video 116 min. 6 sec. Color. R-rated. CC (closed caption).
  Availability: ?

DVD Rom

• Blade Runner - The Director's Cut - 1 disc, digital stereo
  Availability:Widely available