When Lilly Ledbetter, a longtime manager at Goodyear, discovered her salary was significantly lower than her male colleagues, she took the company to court. While her case was overturned at the Supreme Court, her hard work finally paying off when President Barack Obama signed the Lilly Ledbetter Fair Pay Act of 2009 into law as his first official act.

Now, Lilly’s life and her case are going to be the subject of “Lilly,” a feature film, directed by Rachel Feldman and starring Patricia Clarkson. Ms interviewed Ledbetter and Feldman about their exciting project.