Trivia / On the Basis of Sex

• Executive Meddling: Defied. Producers initially refused to fund the film because they believed that Martin Ginsburg's support of his wife's career was unrealistic, suggesting that tension could be added by having him threaten to divorce her. Daniel Stiepleman, the writer and the Ginsburgs' nephew, refused to change that aspect of their relationship for the movie.
• Fake American: The British Felicity Jones plays the Brooklyn-born and bred Jew RBG.
• Playing Against Type: Usual protagonist (either main or supporting)/wise older mentor Sam Waterston plays one of the film's antagonists.
• Real-Person Cameo: The real RBG appears at the end of the film.
• What Could Have Been: Natalie Portman was originally slated for the lead role.

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