Margot Kidder passed away at her home in Montana this morning at the age of 69. A Canadian-American actress who starred in 1970's cult films like Sisters (1973) and Black Christmas (1974), as well as the horror classic The Amityville Horror (1979), she will always be best known for playing Lois Lane in four Superman movies alongside Christopher Reeve's Man of Steel, from 1978-1987. For those who hold the Reeve Superman films close to their hearts (like me), this is a very sad loss, as Kidder's Lois was a feisty, tough talking, and independent reporter- hardly just a damsel in distress and just as iconic a character to the series as the lead. Back when superhero movies recognized the importance of a good love story, Superman and Lois Lane's was crucial and treated that way by the films, especially Superman and Superman II (something that would never happen today in these kinds of movies). Kidder later made appearances on TV shows like Smallville, Brothers & Sisters and The L Word, as well as in theater, but it's as Lois that she'll always be remembered.