When Carrie Fisher discovered the journals she kept during the filming of the first Star Wars movie, she was astonished to see what they had preserved plaintive love poems, unbridled musings with youthful naivet, and a vulnerability that she barely recognized. Her fame as an author, actress, and pop-culture icon is indisputable, but in 1977, Carrie Fisher was just a teenager with an all-consuming crush on her costar, Harrison Ford.