The Silent Enemy is a 1958 action film directed by William Fairchild. It stars Laurence Harvey as Lionel "Buster" Crabb and describes his exploits during World War II. Based on Marshall Pugh's book Commander Crabb, it was made following the publicity created by Crabb's mysterious disappearance and likely death during a Cold War incident a year earlier. Plot The story begins with a dramatisation of the Italian manned torpedo raid on Alexandria (1941) in which two British battleships were sunk. The British are worried that this new Italian tactic will give the enemy naval supremacy in the Mediterranean. From Spain, an Italian expert on underwater operations is secretly watching the British base in Gibraltar and planning new attacks. Maverick diver Lionel Crabb is brought in to head the British response. He creates a team of divers to intercept the Italian attacks and defuse the bombs. The Italians plan a major attack on a British convoy, but Crabb and another diver manage to infiltrate the Spanish docks from which the Italians are planning the attack, identifying the ship (the Olterra) which the Italians attack from. Crabb leads an unauthorised pre-emptive strike on the ship carrying the torpedoes and destroys it, winning the George Medal. The British divers are shown as using Davis Submerged Escape Apparatus. [edit]Inaccuracy This film does not represent real events accurately:- In particular, in the real world there was no attack on the Olterra, and no underwater hand-to-hand battle between Italian and British frogmen. The breathing sets used by the film's actors representing the Italian frogmen are British naval type rebreathers (with fullface masks with oval windows like an eyes-and-nose mask's, and not with large rectangular windows as used by British frogmen and naval divers more recently) and not authentic Italian rebreathers, beause the Italian frogmen were acted by British naval divers, riding British-type manned torpedoes representing Italian maiali. In the film Crabb dives on the wreck of a recently crashed B-24 Liberator that had gone into the sea just after taking off from Gibraltar Airport. This scene was based on the accident in 1943 in which Polish general Władysław Sikorski was killed. In the film the submerged wreck of an Avro Shackleton is used as a stand-in for the Liberator. 4. The part in the film showing the Liberator crashing into the sea is at Camp Bay. The crash actually happened off the eastern end of the runway crashing into the Mediterranean Sea. Cast Laurence Harvey as Lieutenant Lionel Crabb, R.N.V.R. Dawn Addams as Third Officer Jill Masters, W.R.N.S. Michael Craig as Leading Seaman Knowles John Clements as the Admiral Sid James as Chief Petty Officer Thorpe Alec McCowen as Able Seaman Morgan Nigel Stock as Able Seaman Fraser Ian Whittaker as Ordinary Seaman Thomas Arnoldo Foà as Tomolino Gianna Maria Canale as Conchita Massimo Serato as Forzellini Giacomo Rossi-Stuart as Rosati Carlo Giustini as Fellini Raymond Young as Celloni David Lodge as Sergeant Ewen Solon as Willowdale Captain Brian Oulton as Holford Howard Marion-Crawford as Wing Commander Cyril Shaps as Miguel Lee Montague as Miguel's Mate John Lee as Flag Lieutenant Terence Longdon as Lieutenant Bailey Ian MacNaughton as Sentry outside Admiral's Office Alan Webb as British Consul John Moffatt as Diving Volunteer Harold Siddons as Army Interrogation Officer Michael Brill as Naval Interrogation Officer