 Kedok Ketawa was released in Batavia in July 1940 , with a press screening on 20 July . By September it was being shown in Surabaya . In some newspaper advertisements , such as in Pemandangan , it was referred to as Pendekar dari Preanger ( Warrior from Preanger ) , while in others it was advertised with the Dutch title Het Lachende Masker . It was marketed as an " Indonesian cocktail of violent actions ... and sweet romance " and rated for all ages . 
