‘Superman’ star Margot Kidder, who played Lois Lane, dies

Margot Kidder during Comic-Con in San Diego in 2005. (Getty Images)

LIVINGSTON, Mont. – Actress Margot Kidder, who played Lois Lane in “Superman,” has died at 69.

Kidder passed away from undisclosed causes at her home in Montana on Sunday. Her obituary was posted online Monday.

Kidder starred in “Superman” alongside Christopher Reeve in 1978.┬áHer IMDB profile lists 137 acting credits.

Kidder had a public battle with bipolar disorder and became an advocate for mental health issues.

LOS ANGELES, CA – APRIL 24: Undated file photo shows US actress Margot Kidder, 47, who was found 24 April after missing for thee days. She was found in Glendale, a suburb of Los Angeles, by a resident in his backyard, looking dirty, unkempt and missing two front teeth. Margot, who is known for her role as Lois Lane in the 1978 film “Superman”, was taken to an undisclosed facility for a 72-hour psychiatric evaluation. (Photo credit should read FILE/AFP/Getty Images)