I watched this movie a week ago, the night before I went to the conference, and I really didn't care much for it. It is just too dated. The main couple who were into being super open about sex and affairs seemed very unrealistic and idealistic and also stupid. The other couple who were having marital difficulties was more interesting. But none of the relationships made sense to me.
The women were incredibly beautiful. I think one of the main draws of the film must be watching them prance around in bikinis and lingerie.