A DVD review from The Movie Snob:

Le Divorce (D). There is very little to enjoy in this 2003 Merchant-Ivory release. Naomi Watts is Roxeanne, an American poet married to a French painter. They live in Paris with their little girl, and Roxeanne is pregnant with their second child. The very day that Roxeanne's younger sister Isabel (Kate Hudson) arrives for a visit, the painter husband walks out on daughter and pregnant wife to be with his "true love." (In a nice feat of timing, he walks out just in time to leave in the taxi that Isabel arrived in.) Although Roxeanne is understandably upset, impetuous Isabel can't help soon starting an affair with a married man of her own. The distasteful main plot is accompanied by two stupid subplots about a deranged guy who seems to be stalking Roxeanne and a painting that may or may not be a lost masterpiece worth millions. The movie is bad, bad, bad. Avoid it.