Zimmer had a brief acting career during the mid-to-late 1970s. After playing the female lead opposite Darwin Joston and Austin Stoker in Assault on Precinct 13, Zimmer appeared (as Laura Fanning) in the 1977 comedy spoof American Raspberry, and two 1977 French films: Jean Eustache's Une sale histoire ("A Dirty Story") and Charlotte Szlovak's Slow City, Moving Fast (also known by the French title D'un Jour a L'Autre). Shortly thereafter, Zimmer's career stalled, and, after playing her fifth role (in 1979's television movie Survival of Dana), she permanently retired from acting.