'Katharine Hepburn' is misspelled in the credits as 'Katherine Hepburn'.
'Gayle Evers' is misspelled in the opening credits as 'Gale Evers'.
Toward the end, when Sidney convinces her mother to leave, she reaches for her mother's coat, and someone off-camera hands it to her. The hands of the crew member are clearly visible. Correction: The maid hands Sidney her mother's coat. You can see the maid's apron when she steps into view. Several scenes earlier the maid told Gray she had the mother's bags packed.