in 1940, waldy was approached to act in "zoebaida", a film directed by njoo cheong seng for oriental film. he accepted the role, and also served as songwriter for the film. over the next three years he took a variety of film roles for star film, including "ajah berdosa", "lintah darat", "tjioeng wanara", and "pah wongso tersangka" (all 1941).