Must See Film -Une Vieille Maîtresse

My girlfriend & I saw this film on Sunday (merci Dieu, that we have one theatre here in Hawaii that does show foreign films), & it was a pretty good film, not great, but a good character driven story. I'd give it 3 1/2 croissants out of 5.

Une Vieille Maîtresse -"The Last Mistress" 

I don't know how to pronounce the word "vieille". I do know that the title literally translates to "The Old Mistress". If all my french friends could help us out with this word, it would be appreciated. Is is pronounced "vee yay" or "vee eye eee" or "vee eye ya"? Please help me with this one-Merci, Roy

UPDATE 9/24 Isabelle, our friend from France tells me it is pronounced "vee yay". Our thanks always for your help.

Plot:

Ryno de Marigny (Fu'ad Ait Aattou, before getting married to the young and innocent Hermangarde (Roxanne Mesquida), makes a last visit to La Vellini (Asia Argento), his Spanish mistress, to bid goodbye in an act of lovemaking. His liason with La Vellini is the subject of the Parisian gossip, and before Hermangarde's grandmother gives her blessing, she wants to hear from Ryno everything about this relationship. Ryno reveals a temptestuous story but indicates that his ten year romance is over; he now is in love with Hermangarde. After the marriage, the newlyweds move away to a castle at the seashore. They are happy and soon Hermangarde conceives. But the "last/old mistress" reappears, and while Ryno tries to keep her out of his life, she is not to be rejected, and Hermangarde finds out about it.