: Crabb, played by Laurence Harvey, starts with no diving experience and must rapidly build and train an "Underwater Working Party" with limited resources.
: It highlights a lesser-known theater of WWII: the underwater battle in the Mediterranean. Specifically, it details the threat posed by the Italian 10th Flotilla, who successfully mined British battleships like the HMS Queen Elizabeth and HMS Valiant . The Silent Enemy(1958)
: Unusually for war films of the era, it avoids heavy jingoism, portraying the Italian divers not as fanatics but as skilled, professional adversaries performing dangerous work. : Crabb, played by Laurence Harvey, starts with
: The film is based on Marshall Pugh’s 1956 book, Commander Crabb . It was produced just two years after the real Lionel Crabb vanished under mysterious circumstances during a Cold War reconnaissance mission for MI6 in 1956. : Unusually for war films of the era,
: It explores the psychological tension of an invisible enemy that attacks from the shadows of the harbor.