Dan in Real Life (2008)

Dan Ashburn is a devoted single father and renowned advice columnist. When his entire extended family gets together for a reunion in a beachfront house, he unexpectedly meets Beth, the woman of his dreams. She is smart, funny, beautiful and she just happens to be his brother's girlfriend! In this heartfelt new comedy, the man with all the answers finds that the hardest advice to take is your own.

Official website: http://www.apple.com/trailers/touchstone/daninreallife