After appearances in Volvoreta (José Antonio Nieves Conde, 1976), "Del amor y de la muerte" (Antonio Giménez Rico, 1977), among other films, her cinematic career took a notable turn when she began a relationship with the producer Elías Querejeta, facilitating her appearances in films as important as "Dedicatory" (Jaime Chávarri, 1980), which called her to the attention of other directors in both Spain and Mexico, such as Felipe Cazals ("Las siete cucas "), Pilar Miró ("We Will Speak Tonight"), Jaime Camino ("The Open Balcony"), Emilio Martínez Lázaro ("Lulú of the Night"), Imanol Uribe ("The Black Moon"). She became an instant celebrity in Spain, alongside the likes of Nino Bravo, Pedro Carrasco, Rocío Dúrcal, Rocío Jurado, Camilo Sesto, La Pandilla and other Spanish celebrities of the 1970s, following her victory at Miss Universe with a fruitful show business career. In 1979, Muñoz acted in the comedy "Mama Turns 100", by Carlos Saura. This was followed by performances in 1982's "Todo un Hombre" ("He's all a Man"), 1999's "A Paradise Under the Stars" and 2003's "El Tahur". In the late-1990s, she returned to mainstream Spanish cinema with the movie "Familia", by Fernando León de Aranoa and started a new life as an actress. In 1980, she went to live in Mexico and partnered with Chilean national Flavio Labarca, who ran an antique shop. In 1991, she lived with Victor Guijarro in the Philippines, thereby disappearing from film for seven years (1989-1996), but eventually her immediate family requested her return to Spain, during which began the alleged melancholia and extreme mental depression of Muñoz. Returning to Spain, growing tabloid newspaper accusations of mental depression, drug addiction, Parkinson’s Disease, and Human Immunodeficiency Virus coupled with poverty and melancholia ravaged Muñoz’ public image, along with the physical decrepitude allegedly causing emotional shame and her imminent withdrawal from society. In 1976, Muñoz met singer-songwriter Patxi Andión, who would become her first husband, while making "The Other Bedroom". They were married in 16 May 1976 and divorced in 1978, however due to the irregularities of this marriage according to Constitution of Spain, it was not legally finalized until 1983.