Margot Kidder, who became famous for playing Lois Lane opposite Christopher Reeve in Superman, has died at her home in Montana. Kidder was 69; her acting career spanned decades, from TV series in the late 1960s to seven films in the past five years.
A cause of death has not yet been publicly released for Kidder. Her death was announced by the Franzen-Davis Funeral Home in Livingston, Mont., where she resided.
"The actress and activist passed away on Sunday, May 13th, 2018 at her home," the funeral home said.
Margaret Ruth Kidder was born in Canada and honed her acting skills on TV shows such as McQueen, Nichols, Banacek and Mod Squad before becoming a movie star.
After landing a lead role in Brian de Palma's Sisters in 1972, Kidder's film career took off. It hit the stratosphere six years later, when Kidder appeared as Lois Lane in the launching of the Superman film franchise. She went on to appear in three sequels over the next nine years.
Famous for her smoky voice and for portraying smart, indomitable characters, Kidder also struggled with addiction and bipolar disorder for much of her life. She suffered from a famous breakdown in 1996, when she went missing for several days. When police found her in Glendale, Calif., she was hiding in the bushes behind a house.