Married Life
2008
After many years of marriage, Harry Allen (Chris Cooper) falls in love with lovely Kay Nesbitt (Rachel McAdams). Harry plots to kill his wife, Pat (Patricia Clarkson), because he feels divorce would be too hard on her. Meanwhile, his roguish best friend, Richard (Pierce Brosnan), is also in love with Kay and would like nothing better than to steal her out from under Harry's nose. Wikipedia