On the Basis of Sex

On the Basis of Sex is a 2018 American biographical legal drama film based on the life and early cases of Supreme Court Justice Ruth Bader Ginsburg, who served as an Associate Justice of the United States Supreme Court from 1993 to her death in 2020, and became the second woman to serve on the Supreme Court. Directed by Mimi Leder and written by Daniel Stiepleman, it stars Felicity Jones as Ginsburg, with Armie Hammer, Justin Theroux, Jack Reynor, Cailee Spaeny, Sam Waterston, and Kathy Bates in supporting roles.

The film had its world premiere at the AFI Fest on November 8, 2018, and was theatrically released in the United States on December 25, 2018, by Focus Features.