The Canadian actress Margot Kidder, who has died at 69, starred as Lois Lane opposite Christopher Reeve in the Superman film franchise of the 1970s and 1980s.
The original Superman, directed by Richard Donner and released in 1978, was a superhero blockbuster two decades before comic book movies became the norm at the top of the box office.
Ms Kidder, as ace reporter Lane, was a salty, sexually savvy adult who played off of the boyish, farm-raised charm of Reeve’s Clark Kent and Superman, though her dogged journalism constantly got her into dangerous scrapes that required old-fashioned rescues.
Ms Kidder had many of the movies’ most memorable lines, including “You’ve got me?! Who’s got you?!” when she first encountered the costumed hero as she and a helicopter plunged from the top of a Metropolis building.
She and Reeve were relative unknowns when they got their leading parts in the first of the films in 1978, which also included big names Gene Hackman and Marlon Brando.
Ms Kidder and Reeve went on to star in three more Superman movies, the fourth and last in 1987.
She said she and Reeve, who died in 2004, were like brother and sister, both in their affection and animosity for each other.
“We quarrelled all the time,” Ms Kidder said on May 9 in an interview on radio station WWJ in Detroit, where she had been scheduled to appear at Motor City Comic Con later this month.
“The crew would be embarrassed. They would look away.
“Then we’d play chess or something because we were also really good friends.”
Both would remain known almost entirely for their Superman roles, and struggled to find other major parts.
Ms Kidder also had a small part in 1975’s The Great Waldo Pepper with Robert Redford, and starred as conjoined twins in Brian De Palma’s 1973 Sisters, and as the mother of a terrorised family opposite James Brolin in 1979’s The Amityville Horror.
Ms Kidder had a debilitating car accident in 1990 that left her badly in debt, confined her to a wheelchair for most of two years and worsened the mental illness she had struggled with for much of her life.
That struggle became public in 1996 when she was found dazed and filthy in a yard not far from the studio where she once filmed parts of Superman.
She fought through her illness and continued working, however, appearing in small films and television shows and amassing credits until 2017, most notably R.L. Stine’s The Haunting Hour, which earned her a Daytime Emmy Award as outstanding performer in a children’s series in 2015.
“I don’t act much anymore unless I’m broke, and then I’ll take a job,” she told the Detroit radio station with a laugh.
She spent the last decades of her life living in Montana and engaging in political activism, including protest against the US military action in Iraq.
Born in Yellowknife, Canada, she graduated from a Toronto boarding school before pursuing acting.
She dated then-prime minister Pierre Trudeau in the 1980s, calling him the “love of my life, my true love” in her radio interview last week.
She was married and divorced three times, including a brief marriage to actor John Heard, and is survived by a daughter, Maggie McGuane.