We already had the documentary “RBG” last year, which told Ruth Bader Ginsburg’s story. Now we have “On the Basis of Sex”, which tells the story leading up to her first sexual discrimination suit success. Felicity Jones and Armie Hammer play the Ginsburg’s, with Ruth the intense, driven one and Marty equally driven, but possessing warmth and humor. The story is hard to believe because it deals with sexual discrimination, which was basically legal up until the 1970’s. Jones and Hammer play the couple realistically, showing how they loved and supported each other. A good film, but not a great film. If you really want to learn about Ginsburg see “RBG”.