 Instead, scenes showing the pirates were shot at the shore of an inlet in Batavia (modern day Jakarta).Other scenes used unused footage from The's previous work "Alang-Alang" ("Grass"; 1939).Some scenes were inspired by Hollywood films; a scene where Ferry Kock's character bites a rencong during a fight, for example, was inspired by a scene in Tarzan films; "Alang-Alang" and the later film "Poetri Rimba" ("Jungle Princess"; 1941) also drew inspiration from the series.