Watch Play Safe (1978) : Full Movie Online Free Sponsored as part of the Electricity Council's 'Understanding Electricity' campaign, Play Safe is a series of three hard-hitting fillers designed to highlight to children the potentially fatal consequences of playing near overhead electric lines and substations. The carefree attitude of the youngsters as they fly their kites and radio-controlled planes in the open air is undermined by composer Harry Robinson's electronic soundtrack, which pulsates with menace throughout.