Cristina Aragon played the first Valentina role in the film "Darna" (1951), the very first film adaptation of "Darna" comics series. Twenty-two years later, in 1973, Valentina appeared as a doctoral degree graduate in Reptilian Zooloogy from University of New Delhi in the film "Lipad, Darna, Lipad!". Valentina's full name in this film is Dr. Valentina Vrandakapoor, Ph.D. and she wears a turban to hide the snakes on her head. Celia Rodriguez portrayed Valentina in this film and her depiction of the character, particularly the sequence where twelve real snakes cover her body while in bed, made her one of top actress to play Valentina as well as one of the top villain performers in the Philippines. The snakes on the head of Rodriguez were actually eels (Rodriguez referred to it as water snakes).