Other mistake: When Holly and Daniel are at Yankee Stadium, the seat numbers in the rows behind them are not consistent from row to row.
Other mistake: When Holly and her mother take a stroll in the park, Holly mispronounces the name of her dead husband - while the name is pronounced "dj-e-r-i" throughout the whole movie, Holly calls him "g-e-r-i" here. (01:48:50)