The First Wives Club - 1996 ****

After the suicide of their dear friend over her failed marriage, 3 women decide to get together and form a club based on women who are dumped by their husbands for younger models. Wanting at first to get even, they realise soon after that the best way they can make their ex spouses suffer is to become successful and happy.

A feel good film, with three great actresses all bumping shoulders (and singing too!) 

The Other Woman aka Love and Other Impossible Pursuits - 2009 **

Bleak and hard going. Natalie Portman plays a woman trying to get over the death of her baby as well as juggling her marriage with her husband who left his last wife for her. Portman tries unsuccessfully to get on with her husband's son from his first marriage, all the time feeling inadequate for not having the child she so desperately wants.
Nothing happy or positive here so don't watch unless you have some sort of sedation for afterwards.