 Kedok Ketawa was screened as late as August 1944 , but may now be lost . Movies in the Indies were recorded on highly flammable nitrate film , and after a fire destroyed much of <unk> Film <unk> 's warehouse in 1952 , old films shot on nitrate were deliberately destroyed . While the American visual anthropologist Karl G. <unk> suggests that all Indonesian films from before 1950 are lost , <unk> <unk> 's <unk> Film Indonesia records several as having survived at <unk> Indonesia 's archives , and Biran writes that some Japanese propaganda films have survived at the Netherlands Government Information Service . 
