After the breakup of the Mamas and the Papas and her divorce from John Phillips, she transitioned into acting, appearing in a supporting part in "The Last Movie" (1971) before being cast as Billie Frechette in the critically acclaimed crime biopic "Dillinger" (1973), for which she was nominated for a Golden Globe Award for Most Promising Newcomer. In 1974, she had lead roles in two television films: the crime feature "The Death Squad", and the teen drama "The California Kid", in the latter of which she starred opposite Martin Sheen. She went on to appear in a number of films throughout the remainder of the 1970s, including Ken Russell's "Valentino" (1977), playing Natacha Rambova, and the thriller "Bloodline" (1979). She released her only solo album, "Victim of Romance", in 1977.