I heard about this movie a few years ago, I didn't watch it when it came out, infact I watched it for the first time this morning on SKY Anytime.
It was brilliant, I really recommend it, I cried... a lot. LOL
Dan Burns (Steve Carell) is a newspaper columnist, widower and father to Jane, Cara, and Lilly in the New Jersey suburbs. His column is also in contention to be syndicated nationally with a newspaper media company. The family takes a trip to the Rhode Island home of his parents (Dianne Wiest and John Mahoney) to visit his family—including his New York City-based brother, Mitch (Dane Cook), a personal trainer—for an annual family get together. Cara does not want to go, as she does not want to leave her boyfriend Marty (Felipe Dieppa) with whom she claims to have fallen in love in just three days. But Dan insists that it is not possible to fall in love in three days and makes her go. The morning after his arrival, Dan's mother encourages him to go into town for a bit to give his daughters some space. Dan visits a bookstore and a customer named Marie (Juliette Binoche) mistakes him for an employee. Dan and Marie have an obvious connection and continue to talk over breakfast. Marie agrees to meet with Dan again before leaving, but tells Dan that she has a boyfriend. Dan returns to his parents' house and happily announces he has met someone new, only to find that Marie is there, her boyfriend being Dan's brother, Mitch.
BTW, the trailer is the reason I didn't watch it the first time. It's a better than what the trailer portrays.