The movie I believe is based on a group of rich/privileged kids in high school or college. One of their friends has died.
The scene contains the group of friends all sitting on a porch, in warm weather. I believe it is after they have attended the funeral. The friends seem to be disaffected by the news of the death of their friend.
One friend who is a girl in the scene is crying, and is the only one crying out of the group of friends.
I stumbled on a trailer of this movie on youtube while watching trailers of movies for The Informers and Less Than Zero.
Some of what you describe reminds me of “Metropolitan.” Several friends discuss another person’s suicide in a very distant manner
Possibly The Big Chill? Here’s the trailer…
http://www.imdb.com/videoplayer/vi1351549209?ref_=tt_pv_vi_aiv_1