Meeting the family for the first time is never easy, and it's definitely not easy if your first time is over the holidays — and your boyfriend's brother happens to be extremely hot. With yet another stacked cast that includes Diane Keaton, Craig T. Nelson, Sarah Jessica Parker, Dermot Mulroney, Luke Wilson, Elizabeth Reaser, Rachel McAdams, and Claire Danes, among others, it's pretty impossible not to fall in love with the Stone family.