High Definition Remaster
Original Mono Audio
Audio Commentary With Film Historian Michael Brooke And Author Johnny Mains
"Undercover Killer: Inside ‘The Snorkel’" (2018, 21 Mins): An Analysis Of The Film And Its Production By Hammer Expert Jonathan Rigby, BFI Curator Josephine Botting, And Cultural Historian John J Johnston
"Hammer’s Women: Betta St John" (2018, 11 Mins): Film Historian Kat Ellinger Offers An Appreciation Of The American Actress, Singer, And Dancer
Original Script Ending (10 Mins): A Reconstruction Of The Final Scenes As They Appear In Jimmy Sangster's Original Screenplay
"Peter Allchorne And Hugh Harlow Remember ‘The Snorkel’" (2018, 8 Mins): The Hammer Production Crew Regulars Recall Making The Film
"Four-Note Fear" (2018, 24 Mins): An Appreciation Of Composer Francis Chagrin’s Score By David Huckvale, Author Of "Hammer Film Scores And The Musical Avant-Garde"
Original Theatrical Trailer
Image Gallery
English Subtitles For The Deaf And Hard-Of-Hearing