Sound an Alarm

Sound an Alarm is a 1962 documentary about the role of the Royal Observer Corps during the event of a nuclear attack on the United Kingdom. It was also made in 1971. The film identified as Sound an Alarm 1962 is wrongly identified. Its actual title was The Hole in the Ground. It is mistakenly identified because this version is missing the title frame, and the name is taken from the final credits and the motto of the United Kingdom Warning and Monitoring Organisation.

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