Career
She was once dubbed the Elizabeth Taylor of the Philippines. She is the mother of actress Liezl Martinez. She is the first Filipino Lux Soap model.
Sampaguita Pictures launched Amalia and Juancho into full stardom in the 1956 film Movie Fan.
They were initially paired as a "love team" - popular in Philippine Cinema - by Sampaguita Pictures,, Sonata (1957), Pakiusap (1959), Ang Senyorito at Ang Atsay (1963) among others She was also paired as love team with Romeo Vasquez in Pretty Boy (1957), Bobby (1958), Ako Ang May Sala (1958) and Bilanggong Birhen (1960) among others
She starred in such notable films as, Estela Mondragon (1960) starring Carmen Rosales, Amy, Susie, Tessie (1960) with Susan Roces, Tessie Agana, starring Jose Mari Gonzales, Eddie Gutierrez, Lito Legaspi, Dayukdok (1961) with Carmen Rosales, Luis Gonzales, Barbara Perez and Amaliang Mali-Mali (1962) with Luis Gonzales. Fuentes wrote the screenplay for the films, and Ito Ang Aming Kasunduan (1973).
She starred in and directed Mga Reynang Walang Trono (1976).
Fuentes has her own production company, Department of Administration and Management (Amalia Muhlach) Productions. She produced several movies, most notable of which are: Whisper to the Wind (1966),, and Pssst Babae!. Halika (1973). She has appeared in more than 130 films.