Due to the fragile nature of 16mm prints and the lack of preservation efforts, are exceedingly rare. The National Film Archive of the Philippines has only a handful of adult titles in its collection, none confirmed to feature Myrna C. However, private collectors in Pampanga and Laguna reportedly hold bootleg VHS transfers. Some clips have surfaced on obscure file-sharing sites under keywords like "lumang pelikulang bold 1985 Myrna" or "OT series pinoy vintage."
She is best remembered for her roles in films that define the aesthetic and cultural climate of the early 80s: Virgin People pinoy pene movies ot 80s myrna c work
Myrna Castillo was a prominent Filipino "bold" star of the 1980s, discovered by talent manager Rey dela Cruz in 1980 at the age of 15 Due to the fragile nature of 16mm prints
While primarily Nora Aunor’s vehicle, Myrna C. has a small but unforgettable role as a comfort woman’s friend. Her scenes, though brief, established her as an actress willing to go to dark places (rape, degradation) for the sake of art. Some clips have surfaced on obscure file-sharing sites