Like many teenagers of the late 1970s I was introduced to Margot Kidder through Superman (The Movie). I was disappointed overall in the film -- remember, I was an all-knowing teenager -- but there were memorable moments within. And Kidder was perfect as Lois Lane. She had done films before, and many after, but it is Superman for which she will always be remembered. (Johnny Williams' beautiful "Love Theme from Superman" plays on the radio in obituary news sound bites.)
It's time I watch Don Shebib's Heartaches.