Walang Pagkalupig (also known as "Never outfought") is a 1962 action film based on true story of PC Ranger Captain Laudemer Kahulugan. The film was directed by Pablo Santiago, written by Tommy C. David and stars Fernando Poe Jr., Joseph Estrada, Rodolfo Cristobal & Bert Silva. In this film the story centers around the heroic exploits PC Ranger Captain Laudemer Kahulugan (Fernando Poe, Jr.) tasked to hunt down Huk dissident leader Casto Alejandrino (Van de Leon).