This article examines the filmmaking and historical contributions of Hong Kong left-wing cinema across Hong Kong, Macau, and the Pearl River Delta between 1952 and 1967. Situated within the geopolitical tensions of the Cold War, left-wing film studios in Hong Kong, particularly those associated with the ‘Chang Feng Xin’ group, operated under considerable political and institutional constraints. In response, they increasingly oriented their activities toward the Pearl River Delta and forged close cross-border collaborations among Guangdong, Hong Kong, and Macau. To establish a sustainable presence in the Hong Kong market, filmmakers avoided overt political propaganda and instead drew extensively on Lingnan operatic traditions, creatively integrating progressive left-wing political ideals with the vernacular ethics and everyday cultural practices of urban Hong Kong and Macau. This locally grounded strategic not only enabled these films to reach a broad popular audience but also allowed them to negotiate and transcend the ideological divisions of the Cold War, contributing to the emergence of a transregional cultural community connecting Guangdong, Hong Kong, Macau, and overseas Chinese communities.