Sure, it may be corny in some ways, and sometimes unbelievable, but do we watch movies for it's accurate portrayal of reality, or to stir our imaginations? Perhaps a little of both, with a little of both being sacrificed for the other in the process. I found Bitter Moon to provide an exaggerated portrayal of the dark sides of human sexuality, and the shallowness and selfishness of 'love'. It tells a story about how a couple fall completely in love with one another, and how it turns into a sour, bitter, but codependent experience over time. The story unfolds as a man on a cruise ship (Peter Coyote) meets up with a stranger at the bar (Hugh Grant) and ends up telling him the story of how he and his wife fell in love. Grant's character ends up falling for this man's wife due to his own lack of excitement in his own marriage, as the story is being told.
I agree with one of the other reviews, in that many will criticize the movie, yet they won't be able to tear their eyes away the whole time. I think this movie gives an insight into the darker side of human nature when it comes to love and attachment, done in an entertaining way.