Factual error: There are two rentals cars driven by "Theresa" which have the same North Carolina license tag number, which is displayed on the front where required in Maine, the actual location of filming, but in North Carolina, license plates are not displayed on the front of the cars.

Continuity: When he sends her the invitation for the christening, she opens and reads it and its on her desk when her boss walks in.  When he's in, she picks it up and opens it again.

Continuity: The state names on all the boats in the harbor have obviously been changed. The letters NC are a different size than the city name (New Harbor). This is because the movie was filmed in Maine and all the boats had the have temporary letters placed over the originals.

Factual error: Throughout the movie we see several shots of the supposed NC coastline. None of NC's coastline contains giant pines on the beach or rocky cliffs at the water's edge nor does the coastline rise to over 12 ft above sea level for almost 30 miles inland (past the Outer Banks and the mainland sound shore).

Continuity: In the scene where Garret finds the messages and bottle in Teresa's bedside table, the candle on the table is lit in one shot, then unlit, and then lit again.

Continuity: The scene where Garret and Teresa take the boat out for the early morning test sail. The wide shot cutaway as they are sailing out of the harbour has Teresa's left leg bent and laid flat against the boat. The immediate cut back to the two mid shot has Teresa with her left leg bent but lifted off the side of the boat. Pedantic but true.