	Feature film production in the Indies recommenced in 1948, amidst the Indonesian National Revolution, a military and political conflict between the newly proclaimed Republic of Indonesia and the returning Dutch colonial forces. Waldy and Sofia joined Tan & Wong Bros. and made their debut together in "Air Mata Mengalir di Tjitarum"; for this film, Waldy again took the role of songwriter. Film scholar Ekky Imanjaya writes that Tan & Wong Bros attempted to cash in on the success of their previous incarnation, Tan's Film. Sofia was advertised based on her resemblance to Tan's star Roekiah, and Waldy bore a physical resemblance to Roekiah's husband, the comedian Kartolo.