The legacy of Pinoy pene movies and Myrna Castillo continues to inspire and influence contemporary Philippine cinema. Many modern Filipino films and filmmakers have drawn inspiration from the iconic movies and actresses of the 1980s, including Castillo.

Her work under major outfits like Sampaguita Pictures showcased the era's duality: stars were marketed as glamorous celebrities in magazines while simultaneously starring in some of the most controversial films in Filipino history.

Myrna Castillo entered this industry not just as a body, but as a presence. While many bold actresses were typecast as mere decorative fixtures, Castillo possessed a distinct screen charisma. She became famously known as the "Darling of the Triple X," a moniker that alluded to the restricted rating of her films and her popularity among the "bomba" aficionados.