Margot Kidder, the actress best known for playing Lois Lane opposite Christopher Reeve in the original “Superman” films, has died. She was 69.

The actress died in her sleep at her home on Sunday in Livingston, Mont., her publicist Camilla Fluxman Pines confirmed to Variety.

Born Oct. 17 in Canada, Kidder got her start in low-budget Canadian films and TV shows before landing a role in 1970’s “Quackser Fortune Has a Cousin in the Bronx” opposite Gene Wilder. She later appeared in 1973’s “Sisters,” “The Great Waldo Pepper” with Robert Redford, and 1979’s “The Amityville Horror.”

She rose to prominence as Lois Lane, the award-winning Daily Planet journalist and Clark Kent’s love interest in all four “Superman” films from 1978 to 1987.

Read More:  Variety