Funeral arrangements are pending, according to Franzen-Davis Funeral Home and Crematory in Livingston, Montana. A cause of death has not yet been confirmed. In that film, which was released after her work on Superman, Kidder played Kathy Lutz, a woman who in real-life was supposedly (and dubiously) haunted by demonic forces.
Superman was the original blockbuster series, and for generations of viewers Kidder's brash, gutsy attitude really defined the character of Lois Lane; and not unlike Reeves' Superman, Kidder's Lois Lane is the yardstick by which all subsequent takes on the role are measured. Her other film roles included The Amityville Horror, Heartaches, Trenchcoat and Little Treasure.
She then appeared playing Siamese twins in Brian De Palma's cult thriller Sisters (1973); in the slasher film Black Christmas (1974); and the drama The Great Waldo Pepper (1975), opposite Robert Redford. But she had continued to act on television, in film and occasionally onstage. This left Kidder homeless for a period of time, and she was very publicly arrested and hospitalized before being diagnosed with manic depression. Kidder later became a mental health advocate after she was found hiding in the bushes in 1996 after wandering the streets of Los Angeles.
Kidder was 69 years old.
Kidder became an American citizen in 2005.
She'd been married 3 times, although she'd been single since the '80s.