- Katharine Hepburn's character's daughter is played by Hepburn's actual niece Katharine Houghton
- Spencer Tracy died 17 days after filming was completed.
- Katharine Hepburn never saw the completed movie. She said the memories of Tracy were too painful.
- When Portier and Houghton arrive at SFO on a United Airlines flight, they take Yellow Cab #1850 in town. The phone number of the cab company is painted on the side of the car. Today, the same number (626-2345) will still get you in touch with Yellow Cab.
Please support TCMDB by adding to this information.Click here to contribute