ABSTRACT
Sound cinema and its technical principles are at present being deployed in capitalist countries in the most varied ways. The 'attendance' at churches, for instance, is increasing because 'improving' showings of 'heavenly' sound films are being arranged in them after services. Lightsensitive photographic cells, the basis of soundfilm projectors, are being used to defend the 'sacred' property of the rich, by devising all kinds of automatic alarm signals and manufacturing sound recording equipment specially constructed in America for private detectives who use them when trailing suspects.
