Difficult Dunn lays half of it on the line
Stars of "Saturday Night Live," even the complicated ones born and raised in a working-class neighborhood of Chicago, don't tend to move back and take up residence in Ukrainian Village. Manhattan usually proves seductive, and then there is the siren call of Malibu. The performers with whom Nora Dunn played on the iconic late-night comedy show — Dennis Miller, Mike Myers and the late Phil Hartman — all ver…