text: Kellerman's next roles included as a woman involved in a deadly plot in the slasher film A Reflection of Fear (1972); an eccentric woman in the road movie Slither opposite James Caan (1973), and a tormented journalist in Charles Jarrott's musical remake of Frank Capra's Lost Horizon (also contributing to the latter's soundtrack). Two years later, she played Mackinley Beachwood in Dick Richards' Rafferty and the Gold Dust Twins (1975), one of two women who kidnap driving instructor—and former United States Marine Corps gunnery sergeant—Rafferty (Alan Arkin), also singing "Honky Tonk Angels".
  In October 1975, Kellerman sang at Reno Sweeney, and performed two shows nightly at the Rainbow Grill from November 25 to December 14. Her next appearance was as Sybil Crane (a woman in the midst of a divorce) in The Big Bus, a parody of disaster films, followed by a role as a lonely real estate agent in the Alan Rudolph-directed and Altman-produced Welcome to L.A. (both 1976). The next year, Kellerman appeared in a week-long run of cabaret concerts beginning at the Grand Finale club on May 2. Songs that evening included versions of Leon Russell and Betty Everett hits.
  At the end of the decade, Kellerman's roles included Maureen, a veteran vaudevillian, in Verna: USO Girl (1978); Veronica Sterling, a party-addicted socialite, in the made-for-television film She'll Be Sweet (1978); and Lise Bockweiss—one of several wives of Pasquinel (Robert Conrad) and daughter of Herman Bockweiss (Raymond Burr)—in the 12-episode miniseries Centennial (1978–1979). Kellerman played Kay King, the pretentious and kooky mother of a lovelorn daughter (Diane Lane), in George Roy Hill's A Little Romance (1979).