Continuity mistake: 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.
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).