Hammer Films’ Four Sided Triangle, starring Hollywood actress Barbara Payton (Bride of the Gorilla, Kiss Tomorrow Goodbye), makes its worldwide debut as a brand-new 4K restored Limited Collector’s Edition on Monday 31 March.

In this gripping science fiction thriller, two brilliant scientists unlock the secret to duplicating life, only to find their actions have deadly consequences.

Co-written and directed by legendary Hammer Films creator, Terence Fisher (Dracula, The Curse of Frankenstein) and originally released in 1953, Four Sided Triangle has been meticulously restored from the original film negatives and will be available as a limited collector’s edition 2-disc set (1 x UHD disc and 1 x Blu-ray) in a slipcase featuring brand new artwork by UK illustrator Tommy Pocket.

This release not only revives a Hammer Films classic but reaffirms the studio’s commitment to restoring its cinematic treasures for today’s horror enthusiasts and dedicated collectors worldwide.
This 4K restoration from John Gore Studios’ Hammer Films team is an essential collector’s edition that offers a deep dive into the film’s creation and legacy. With extensive bonus materials, including new interviews and archival commentaries, it offers fans an unprecedented look behind the scenes of one of Hammer Films’ most innovative films, plus a look at its wider impact on society and culture.

Four Sided Triangle will be released in the UK as a 4K Ultra HD/Blu-ray Limited Collector's Edition on 31 March at the pre-order price via the Hammer web site of £35.

4K UHD/BLU-RAY LIMITED COLLECTOR'S EDITION FEATURES:

• New commentary with film and media historian Melanie Williams and film researcher and critic Thirza Wakefield.
• New commentary with actor and film historian Jonathan Rigby, author of English Gothic, and Kevin Lyons, editor of the Encyclopaedia of Fantastic Film and Television website.
• I Am Not Ashamed: Film historian Lucy Bolton takes an unvarnished look at Barbara Payton, her body of work and her riches-to-rags story of Hollywood excess in an unenlightened and censorious age.
• In the Sticks Sci-Fi!: William Fowler and Vic Pratt, creators/curators of the BFI's ongoing Flipside series, discuss and deconstruct this key example of Hammer's science-horror output.
• Things to Come: Film historian and writer Neil Sinyard examines Four Sided Triangle, its stars, direction and problematic sexual politics.
• An extensive image gallery, including behind-the-scenes images, alongside tracks from Malcolm Arnold's score.