On the Basis of Sex is easy to read as a straightforward triumph story — a brilliant woman outsmarts a biased system. But look more closely, and the film is doing something richer. It poses three questions it never quite answers outright: What is law actually for? Who really deserves credit for a landmark victory? And if the Constitution never once uses the word freedom, what exactly is America celebrating?
I.The True Meaning of Advanced Law: Creating Knowledge, Connecting People
There is a scene early in the film where a Harvard Law professor declares that tax law is the driest subject in the building. Ruth Ginsburg, played by Felicity Jones, would go on to prove him wrong in the most consequential way possible — by using a tax case to dismantle the legal architecture of sex discrimination.
This is the first argument the film makes about law: that at its most advanced, it is not a rulebook but a technology for producing social knowledge. Moritz v. Commissioner was not a civil rights case by any obvious reading. It concerned a man unfairly denied a caretaker deduction because the law assumed only women performed caregiving. Ginsburg saw it as a mirror — a case that reflected back the absurdity of assigning roles by sex to everyone, men and women alike.
Like a scientist who designs an experiment not to win an argument but to generate new understanding, Ginsburg chose Moritz precisely because it could not be dismissed. She was building a bridge between people the law had placed in separate categories — the working woman denied opportunity, and the bachelor denied a tax credit — and showing the court they were victims of the same fiction. Advanced law, the film suggests, is the practice of making those connections legible.
II.Ruth's Victory Would Not Have Happened Without Her Family
The film is admirably honest about something many biopics prefer to obscure: the protagonist does not do it alone. Ruth Bader Ginsburg's career was shaped, enabled, and, at several moments, rescued by the people closest to her — most visibly her husband, Martin, played by Armie Hammer.
Martin Ginsburg was a successful tax attorney who spent decades actively redirecting his own ambitions to make space for hers. In the film, he finds the Moritz case. He cooks dinner so Ruth can prepare briefs. He lobbies colleagues. He absorbs her frustration and reflects back her capability when she can no longer see it herself. This is not presented as sacrifice — it is presented as love that understands what it is doing.
Their daughter Jane, too, is not a background character. Her confrontational relationship with Ruth — the teenager who accuses her mother of using the movement as a substitute for presence — forces Ruth into a kind of accountability that softens her and, arguably, deepens her. The film implies that the emotional work of that relationship made Ginsburg a better advocate, more attuned to the human texture of the cases she argued.
There is a feminist argument embedded here that is easy to miss: systems of support are not incidental to achievement; they are constitutive of it. To celebrate Ginsburg without accounting for the ecosystem she inhabited is to misunderstand how change actually happens.
III.Freedom Is Not in the Constitution — So What Is America, Exactly?
Here is an uncomfortable fact the film does not state but quietly implies: the word "freedom" does not appear in the United States Constitution. Not once. The Bill of Rights speaks of rights, of prohibitions, of process — but not freedom as a declared value. And yet Americans speak of their country as the land of the free with a sincerity that is, if nothing else, emotionally genuine.
The film's central legal drama turns on the Fourteenth Amendment's equal protection clause — a clause added after a civil war, almost a century after the founding, precisely because the original document had failed catastrophically to protect the people inside its borders. Ginsburg's argument was that equal protection must mean something substantive: that the law cannot sort people into categories based on characteristics they did not choose, then treat those categories differently without very good reason.
What the film suggests is that American freedom is not a grant — it is a practice, renewed or abandoned generation by generation through exactly the kind of legal and political struggle it depicts. Ginsburg did not discover freedom in the Constitution. She argued it into existence, case by case, amendment by careful amendment.
This makes the American self-image both more fragile and more interesting than the mythology allows. Freedom is not a founding gift. It is an ongoing argument — one that requires people willing to stand in a courtroom and make the case again.