Margot Kidder, famous for portraying Lois Lane, dead at age 69

Actress Margot Kidder, born in Yellowknife, N.W.T., has died at age 69.

She died Sunday at her home in Livingston, Mont., according to an obituary posted online Monday by the Franzen-Davis Funeral Home and Crematory. The cause of death was not immediately known.

Best known for playing Lois Lane opposite Christopher Reeve in the Superman films of the 1970s and 1980s, she went on to become an advocate for mental health issues after speaking out about living with bipolar disorder.