High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! he 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. It was made following the publicity created by Crabb's mysterious disappearance and likely death during a cold war incident a year earlier. The film depicts events in Gibraltar harbour during the World War II Italian frogman and manned torpedo attacks, although the film's depiction of those events is highly fictionalised.