Just like Tarzan needs Jane, and Robin Hood needs Maid Marian, Superman needs Lois Lane. Christopher Reeve's portrayal of the Man of Steel may have been the most iconic of any to reach cinema screens, but it wouldn't have been quite the same if Margot Kidder wasn't there to play Lois Lane with real humanity and grace. She gave us a Lois that we could relate to, and it made her a star.
In truth, Kidder found fame hard to deal with. She struggled a lot with mental health issues after her she had her big break, and later became a passionate advocate for mental health charities and particularly bi-polar sufferers, having finally had her disorder correctly diagnosed. Her equally passionate advocacy for animal rights saw her spend great deals of time outdoors, which eventually led to health problems. She died at home in May, aged 69.