The pictures dealt more with realist subjects and society , and the level of film technique was immensely improved . cinematographer ho look - ying , for example , had assiduously applied himself to the skills of lap dissolves and superimpositions ; kwong tzan , boss of a production studio , had founded his own patent for a sound recording machine ; the wan brothers had successfully exploited matte shots to create new set designs 總括而言,港產(chǎn)片于五至五二年短短三年間成就了不少經(jīng)典之作,影片內(nèi)容更接近現(xiàn)實(shí)社會(huì),技巧亦普遍地提高了例如攝影師何鹿影鉆研出重疊拍攝法制片廠老板鄺贊發(fā)明了鄺贊通電影錄音機(jī)萬(wàn)氏兄弟成功運(yùn)用接景拍攝技術(shù)去設(shè)計(jì)場(chǎng)景等。