Newland Archer couldn't be more pleased with his recent engagement to the beautiful debutante May Welland. However, his world is thrown upside down by the sensational arrival of May's cousin, Countess Ellen Olenska. Recently returned to America after separating from her husband, a philandering Polish count, Countess Olenska shocks the staid New York aristocracy with her revealing clothes, carefree manners, and rumors of adultery. As Archer comes to better know the Countess, he begins to appreciate her unconventional views on New York society. Meanwhile, Archer becomes increasingly disillusioned with his new fianceé, May. He begins to see her as the manufactured product of her class: polite, innocent, and utterly devoid of personal opinion and sense of self.
Anyway, the movie is a gorgeous period piece with great acting, beautiful costumes and remarkable faith to the book, which is quite moving. I thoroughly enjoyed it, and if you ever have 2 and a half hours with nothing to do, you might too!
Here is the trailer :