Hammer Films are set release, X The Unknown (1956) Collector’s Edition on 4K Ultra HD at the end of July 2026 for the UK.
There’s also a Blu-ray version coming on the same day. I’ve detailed both releases lower down this page.
X The Unknown (1956) is a Hammer science fiction horror film, directed by Leslie Norman. The film stars Dean Jagger, Edward Chapman, Leo McKern and Michael Ripper.
Table of Contents
X The Unknown Collector’s Edition 4K UHD
4K UHD Technical Specs
- Discs: 4 (2 x UHD Blu-ray, 2 x Blu-Ray)
- Video: 4K UHD 2160p
- Aspect Ratio: 1.66:1 UK Theatrical Version / Fullscreen 1.37:1 As-Filmed Version / Widescreen 1.85:1 US Theatrical Version
- Audio: Mono / 5.1
- Running Time: 80 mins approx.
- Rating: PG
Collector’s Edition Contents
- 120 Page Booklet
- Packaged in a High-end, Leather Feel Slipcase
- Double Sided Poster of Original One-Sheets
- 8 x Art Cards (Features Facsimiles of the Original Cinema Lobby Cards
On Disc Extras
- A Man on the Beach (Rare, Early Hammer Short Film, Written by Jimmy Sangster & Directed by Joseph Losey (who was due to make X the Unknown).
- New Commentary with Actor / Comedian Toby Hadoke and Nigel Kneale’s biographer Andy Murray.
- New Commentary with Writer/Producer Dr Steve Haberman & Film-maker / Film Historian Constantine Nasr.
- New Commentary with Film Historian David Kalat.
- Archive 2003 Commentary Featuring Writer Jimmy Sangster & Hammer Expert Marcus Hearn.
- New Commentary On A Man on the Beach by Film Expert Neil Sinyard.
- New Documentary On the making of X the Unknown (Contributions from Toby Hadoke, Andy Murray, Wayne Kinsey, Dick Klemensen & Aactor Frazer Hines)
- New Documentary On Special Effects Maestro Les Bowie (Contributions from Wayne Kinsey, Dick Klemensen, Mike Tilley & Archive Audio Contributions from Christopher Lee, Ian Scoones & Others)
- New Documentary Following the Career of Joseph Losey (The Original X the Unknown Director Who Departed the Project Before Shooting Commenced)
- Sidebar: X the Unknown (Film Critic/Writer Tim Lucas Discusses X & Similar Films Of the Period With Artist/Film Historian Stephen R. Bissette)
- Archive Jimmy Sangster Interview from 2003
- Original Trailers, Censor Card & Super 8 Cut-down Version
- Extensive Image Gallery of Stills & Publicity Material
Purchase Information
You can pre-order X The Unknown 4K UHD Collector’s Edition on 4K UHD for £49.99 from Amazon or HMV. (Prices correct as of 26th June 2026).
The Amazon links on this page are affiliate / associate links. By buying through the links I may receive a commission for the sale.
Release Date
4K Ultra HD Collector’s Edition releases 27th July 2026 in the UK.
Watch The Trailer
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X The Unknown Blu-ray
Blu-ray Technical Specs
- Discs: 2
- Region: B
- Video: 1080p High Definition
- Aspect Ratio: 1.66:1 UK Theatrical Version / Fullscreen 1.37:1 As-Filmed Version / Widescreen 1.85:1 US Theatrical Version
- Audio: New 5.1 mix for 1.37:1, 1.66:1 & 1.85:1 versions + Original Mono Film Soundtrack
- Running Time: 80 mins approx.
- Rating: PG
Special Features
- Making-of Documentary About the Production of X the Unknown
- New & Archive Commentaries with Experts that include; Nigel Kneale Biographer Andy Murray, Film Historian David Kalat, Writer/Producer Dr Steve Haberman
- Displaced and Damned: A Documentary Following the Career of Joseph Losey (The Original X the Unknown Director Who Departed the Project Before Shooting Commenced)
- An Exploration of the Ground-breaking Work of Special Effects Artist, Les Bowie (Includes Archive Audio Interviews with Fellow Special Effects Technicians & Audio from Christopher Lee)
- A Man on the Beach (Rarely Seen Short Film Featuring Jimmy Sangster’s First Scripted Work & Directed by Joe Losey)
Purchase Information
You can pre-order, X The Unknown (1956) Blu-ray now for £24.99 from Amazon. (Price correct as of 26th June 2026).
The Amazon links on this page are affiliate / associate links. By buying through the links I may receive a commission for the sale.
Release Date
X The Unknown Blu-ray releases on 27th July 2026 in the UK.
What Do You Think?
I love these Hammer science fiction films, whether its Quatermass or X the Unknown which are really the same.
Have you been collecting all of the Hammer Films on 4K Ultra HD?
Will you be adding this latest release to your Hammer collection? How would you rate this film?
I would really love to hear your thoughts, you can discuss it on my Popcorn Cinema Facebook page.
You can keep up to date with all the Latest Blu-ray Releases in the UK over on the Popcorn Cinema UK Blu-ray & DVD Release Dates pages.
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