Factual error: In the scene about driving to the guest house in Rodanthe, Dr. Flanner is depicted crossing a large bridge after taking a ferry. This is impossible. There is no large bridge of any kind between the ferry on the southern coast of Hatteras Island and Rodanthe, located to the north, mid-way on the island. The bridge shown was actually the Herbert C. Bonner Bridge, a two-mile span connecting Hatteras Island to the northern Outer Banks, which is the direction the character was headed, meaning he went past Rodanthe several miles earlier. Maybe he missed it in the fake sand storm.
Factual error: The doctor parks his car under the house before the storm hits. Since the house is on the beach and the wind and water hit the house, there is no way his car would start and be so clean after such a storm.
Dr. Paul Flanner: What keeps you safe?
Adrienne Willis: Well, you fall in love with someone, you know... and you make a family... and you become what you think you're supposed to be. And you change and you give up certain things. Then they look at what you've got left and you wish you... I don't know, you just think maybe you shouldn't have.
Dr. Paul Flanner: Don't.
Dr. Paul Flanner: Just don't do it anymore.
Adrienne Willis: ...Huh.
Adrienne Willis: When Jack left me, it wasn't just our marriage ending. It was the loss of all the hopes that I'd had for the future. I tried to move on, but the world didn't seem that interested in me anymore. Then you came along, and helped me believe in myself again.
Adrienne Willis: I know you've only ever known your father and me. And I love Jack, because he is your father. But there's another kind of love, Amanda. One that gives you the courage to be better than you are, not less than you are. One that makes you feel that anything is possible. I want you to know that you could have that. I want you to hold out for it.