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UK import. 4K Ultra HD disc is region free; Blu-ray disc is region free and will play on all Blu-ray players worldwide.

 

X The Unknown LE UK Import 4K Ultra HD Blu-ray marks the long-awaited 4K debut of this classic Hammer science-horror film, often considered the unofficial companion to the Quatermass series.

 

When a soldier dies from unexplained radiation poisoning, an investigation leads to the discovery of a mysterious, radioactive entity lurking beneath the earth’s surface. As the deadly force begins to rise and consume everything in its path, scientists must confront a threat that cannot be reasoned with—or even fully understood.

 

Blending Cold War paranoia with classic British sci-fi horror, X The Unknown remains a tense and atmospheric entry in Hammer’s early genre output.

 

directed by: Leslie Norman
starring: Dean Jagger, Edward Chapman, Leo McKern
1956 / 80 min / 1.37:1 / English

X The Unknown LE (UK Import) [4K Ultra HD + Blu-ray] - Pre-Order 7/13

$94.99Price
Quantity
Expected to ship on or around the release date: July 13, 2026. Import pre-orders may ship after street date due to international distribution timelines.
  • 4K UHD + BLU-RAY LIMITED EDITION SPECIAL FEATURES

    • Four-disc set (2 x 4K Ultra HD, 2 x Blu-ray) with content duplicated across both formats
    • Three versions of the film: 1.66:1 UK theatrical version, 1.37:1 as-filmed version, 1.85:1 US theatrical version
    • Original mono soundtrack and brand-new 5.1 mix on select versions
    • Subtitles: English, French, Italian, Spanish, German
    • High-end leather-feel slipcase
    • Rigid inner box with artwork by Robert Sammelin
    • Double-sided poster featuring original one-sheet artwork
    • Eight art cards reproducing original lobby cards
    • A Man on the Beach – early Hammer short film written by Jimmy Sangster and directed by Joseph Losey
    • New audio commentary with Toby Hadoke and Andy Murray
    • New audio commentary with Dr Steve Haberman and Constantine Nasr
    • New audio commentary with David Kalat
    • Archival 2003 commentary with Jimmy Sangster and Marcus Hearn
    • Commentary on A Man on the Beach by Neil Sinyard
    • New documentary on the making of X The Unknown
    • New documentary on special effects artist Les Bowie
    • Documentary on the career of Joseph Losey
    • Sidebar: X The Unknown – discussion with Tim Lucas and Stephen R. Bissette
    • Archival interview with Jimmy Sangster (2003)
    • Original trailers, censor card and Super 8 cut-down version
    • Extensive image gallery
    • 120-page booklet with new essays, archival material and production analysis
    • Limited Edition

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