Katharine Hepburn and Douglas Fairbanks Jr. performed the balcony scene from "Romeo and Juliet" in costume, but it was not used in the picture.
Katharine Hepburn would state that her performance as Eva Lovelace - which earned Hepburn her first Best Actress Academy Award - was inspired by Ruth Gordon, who had declined author Zoe Akins' invitation to create that screen role. Gordon would win the Academy Award for Best Supporting Actress (for Rosemary's Baby (1968)) at the Academy Award Ceremony held in 1969, where Hepburn would receive her third Best Actress Academy Award (for The Lion in Winter (1968)).
Filmed in 17 days.
Katharine Hepburn is the only movie star to win four Academy Awards (2009) for Best Actress: This film, Guess Who's Coming to Dinner (1967), The Lion in Winter (1968) and On Golden Pond (1981).
The only film in which Katharine Hepburn gives an acting Oscar winning performance in a film not nominated for Best Picture.