On the Basis of Sex is a biographical legal drama film directed by Mimi Leder. It tells the story of Ruth Bader Ginsburg, a young lawyer who fought for gender equality and became a U.S. Supreme Court Justice. Armie Hammer plays the role of Martin Ginsburg, Ruth's supportive husband. The film explores Ruth's early career struggles and her landmark case that challenged gender discrimination. Hammer's performance showcases the loving and supportive relationship between Martin and Ruth.