Continuity mistake: When Katharine Hepburn carries the white carnations out of the elevator (which have just been given to her by Gig Young), they turn pink when she steps off the elevator and walks outside.
Continuity mistake: When Katherine Hepburn and Spencer Tracy are on the roof eating lunch, she opens and eats her sandwich over and over again.
Continuity mistake: Bunny Watson and Mike Cutler talk about Cutler's promotion to vice president in Watson's office. Maps are displayed on the wall of Watson's office. When Mike says "Sumner, of course. Who else?" the map in the background is South America. In preceding and succeeding shots, the map is of Central America.
