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Hollywood and beyond are mourning the death of "Superman" star Margot Kidder, who died Sunday at her home in Livingston, Montana.
The actress most famous for bringing Lois Lane to life on the silver screen was 69 at the time of her death, which took over Twitter Monday morning as news quickly spread.
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View StoryAccording to TMZ, Kidder's cause of death is currently unknown, but foul play has been ruled out. Park County Attorney Bruce Becker said that someone called police to report Kidder was unconscious and not breathing in her home. Police responded and found her dead.
Kidder's career took off when she starred opposite Christopher Reeve in the 1978 "Superman" movie as well as the film's three sequels. Despite a very public battle with bipolar disorder, Kidder continued to take on small acting roles in TV shows and movies up until this year. She also had a part in "The Vagina Monologues" on Broadway.
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View StoryDuring her struggle with bipolar disorder, Kidder was briefly homeless in 1996. She later became an advocate for mental health awareness.
"On screen, she was magic. Off screen, she was one of the kindest, sweetest, most caring [women] I've ever known," Mark Hammill tweeted. "I'll miss you, [Margot Kidder]. Your legacy will live on forever." Elijah Wood also expressed his sadness on Twitter, simply writing, "Oh no, Margot Kidder."
See how other stars and fans are mourning the loss below:
