In 1977, Phillips released her first and only solo album, "Victim of Romance", produced by Jack Nitzsche for A&M Records. Commenting on the record, she said: "I didn't do it earlier because I never felt secure enough as a vocalist. I'm good, but Cass was always better." Phillips also commented on her involvement in its production, saying that she had been involved in "every aspect, from mixing to putting together the package and cover myself." Her first two solo singles from the album failed to make the U.S. music charts. Concurrent with her solo album release, she sang backup vocals with former stepdaughter Mackenzie Phillips on "Zulu Warrior" for her ex-husband's second solo album, "Pay Pack & Follow". Around the same time, she starred as Rudolph Valentino's second wife Natacha Rambova in Ken Russell's film "Valentino" (1977). The film received mixed reviews, with "Time Out" London saying: "Structured as a series of flashbacks from Valentino's funeral to his early years in America, the first hour or so of this biopic is Russell's sanest and most controlled work in several years, despite its hollow cynicism." The following year, Phillips married radio executive Robert Burch, though their marriage ended in 1979. In early 1979, the 34-year-old Phillips was romantically linked to 17-year-old Leif Garrett.