Signal Rock is a 2018 Filipino-language Drama film directed by Chito Ro O and produced by Chito Ro O. Based on a true story and set in 1990s, the film follows Intoy , as he takes care of his family in Biri, Samar while his sister is in the overseas, only to contact her using strange rock formations in the island. Signal rock features Christian Bables, Daria Ramirez, Nanding Josef, Mon Confiado, Elora Espa O, Keanna Reeves and Lee O'brian. The screenplay is written by Rody Vera. The music was composed by Erwin Fajardo. Cinematography was done by Neil Daza and editing by Carlo Francisco Manatad. The motion picture has a running time of 130 minutes. Distribution rights for the film were acquired by Regal Films.