X the Unknown

Poster of X the Unknown

It kills… but cannot be killed!

Synopsis

X the Unknown (1956) follows an atomic research scientist called to examine a lethal disturbance after soldiers are killed near a deep crack in a rural Scottish field. As radiation deaths spread and the phenomenon begins moving toward populated areas, he identifies a subterranean lifeform feeding on radioactive material and works with authorities to track and contain it. This tense British science fiction horror film pits scientific control against a subterranean organism, as containment begins to fail, with atomic age anxiety, radiation spread, and emergency response efforts.

Selected disc options for X the Unknown

Extras
Hammer Films box art
Hammer Films BD-ALL 4K/UK  
Scream Factory box art
Scream Factory BD-A/US 2020
Anolis box art
Anolis BD-B/DE 2022
Shock box art
Shock BD-B/AU 2013
Anchor Bay box art
Anchor Bay DVD-0/US/OOP 2000
DD Video box art
DD Video DVD-0 PAL/UK/OOP 2003
Audio Commentary by Dr. Steve Haberman and Constantine Nasr has extra
Audio Commentary by Andy Murray has extra
Audio Commentary by David Kalat has extra
Audio Commentary by Dr. Rolf Giesen (In German) has extra
Audio Commentary by Ted Newsom has extra has extra
Audio Commentary by Uwe Sommerlad and Volker Kronz (In German) has extra
Audio Commentary by Writer Jimmy Sangster, Moderated by Marcus Hearn has extra
Displaced and Damned has extra
Making of “X the Unknown” has extra
The Men Who Made Hammer: Jimmy Sangster (17:21) has extra has extra
Special Effects Artist Les Bowie has extra
Interview with Writer Jimmy Sangster (20:36) has extra
British Title Sequence has extra
“The World of Hammer: Sci-Fi” (TV Episode, 1994, 24:33) has extra has extra has extra
Trailers from Hell with Joe Dante has extra
Stills Gallery - Photos, Danish Film Program has extra
Theatrical Trailer (1:49) has extra has extra has extra has extra
“A Man on the Beach” - By Joseph Losey (Short, 1956) has extra
Super 8 Version has extra
Search Blu-ray.com

Blu-ray and DVD comparisons available on Rewind logo

Notes

  • Hammer Films’ “Limited Edition” 4K UHD includes a 120-page booklet and eight art cards.
  • Anolis’ Blu-ray is also available in two Mediabook editions, each containing a 32-page booklet with writing by Dr. Rolf Giesen and Uwe Sommerlad (in German).
  • Shock’s Blu-ray of The Quatermass Xperiment includes this film as a bonus.
  • Anchor Bay’s “The Hammer Collection” DVD is also available as a “Double Feature” with Four Sided Triangle (1953).
  • DD Video’s DVD includes a 24-page booklet with writing by Marcus Hearn and Jonathan Rigby. It is also available in the “Hammer Horror: The Early Classics” box set and as a “2 DVD Set” with The Abominable Snowman (1957).

~ Have you spotted a mistake or would like to suggest a disc be added? Request an update ~

Ultimate Edition

Combine the best digital presentation with a selection of choice extras for the ultimate edition.

  • Screen shot for The Men Who Made Hammer: Jimmy Sangster
    The Men Who Made Hammer: Jimmy Sangster (17:21)
  • Screen shot for “The World of Hammer: Sci-Fi”
    “The World of Hammer: Sci-Fi” (TV Episode, 1994, 24:33)
Presentation
Scream Factory box art
Scream Factory BD 2020
  • Video
    • File 1
      • Codec: MPEG-4 AVC
      • Resolution: 1080p23.976
      • Overall bit rate: 36.00 Mbps
      • Aspect ratio: 1.75:1
      • Length:1:19:55.029
      • File size: 20.82 GiB
  • Audio
    • File 1
      • Language: English DTS-HD MA 1.0
      • Sampling rate: 48 kHz
      • Bit rate: 1102 kbps
      • Bit depth: 24-bit
  • Subtitles
    • English SDH
Anolis box art
Anolis BD 2022
  • Video
    • File 1
      • Codec: MPEG-4 AVC
      • Resolution: 1080p
      • Aspect ratio: 1.75:1
  • Audio
    • File 1
      • Language: English DTS-HD MA 2.0 Mono
    • File 2
      • Language: German DTS-HD MA 2.0 Mono
  • Subtitles
    • German
Shock box art
Shock BD 2013
  • Video
    • File 1
      • Codec: MPEG-4 AVC
      • Resolution: 1080i50
      • Overall bit rate: 19.85 Mbps
      • Aspect ratio: 1.36:1
      • Length:1:16:25.800
      • File size: 11.42 GiB
  • Audio
    • File 1
      • Language: English LPCM 2.0 Mono
      • Sampling rate: 48 kHz
      • Bit rate: 1536 kbps
      • Bit depth: 16-bit
  • Subtitles
    • None
Extras Audio Commentary by Ted Newsom Scream Factory BD
Audio Commentary by Writer Jimmy Sangster, Moderated by Marcus Hearn DD Video DVD
The Men Who Made Hammer: Jimmy Sangster (17:21, 1080p) Scream Factory BD
Interview with Writer Jimmy Sangster (20:36) DD Video DVD
British Title Sequence Anolis BD
“The World of Hammer: Sci-Fi” (TV Episode, 1994, 24:33, 1080p) Scream Factory BD
Trailers from Hell with Joe Dante Anolis BD
Stills Gallery - Photos, Danish Film Program Anolis BD
Theatrical Trailer (1:49, 1080i60) Scream Factory BD
Super 8 Version Anolis BD