I believe this movie is underrated. I would give it 8/10. I have not read the book so I really have nothing to compare it. The movie is Predictable, but it has a final twist at the end which I love. I love movies with a final twist at the end like Safe Haven, meant to be, the notebook and so many out there. The actors were very believable and just as others have said here its two stories in one. Two women and one man. Each story of the same man Mathew with a different woman. In one Mathew the fun guy, the one that has a child inside, the positive and happy man. That is the man Suzanne got to know. By the other side Mathew the guy that has lost his spark, quite, hard to understand, with sad eyes and with a secret inside.
This movie made me cry towards the end. I consider worth watching and do not see why someone could give it a bad review. I was entertained all the way from start to finish waiting to see what was the mystery Nicolas had in his life. Of course at the beginning you kind of figure it out but the ending reveals something not expected.