VENICE, Italy -- Catherine Deneuve plays an icon of French cinema in “The Truth.” She even chose her own middle name, Fabienne, for her character who says things like, “I’d rather have been a bad friend and a bad mother and a great actress.” But don’t go looking for some essential truths, or gossip, about Deneuve in lines like that, or in Fabienne’s eyeroll at the mention of Brigitte Bardot. The 76-year-old insists that similarities end with the name.