It seems that the people behind this drudge of movie took all their cues from Woody Allen's movies during the 1990s. What I mean is, "Town & Country" is about a bunch of rich New Yorkers cheating on each other. I'm sure that everyone involved in it must be embarrassed beyond redemption for having gotten involved in it (and I don't just mean because of its abysmal performance at the box office). The only good character is Charlton Heston, basically spoofing himself. And how could a great screenwriter like Buck Henry have written this? He should have known MUCH better, given that he wrote "The Graduate".
All in all, terrible. Fortunately, the cast members have all done good work since. At least I think that they all have.