An adulterous kiss develops into a spouse-swapping experiment in this watchable French drama (2010). The two attractive married couples (Elodie Bouchez and Nicolas Duvauchelle, Roschdy Zem and Marina Fois) agree that the arrangement will last until one of them chooses to end it, and that they'll avoid discussing their extramarital acrobatics with their respective spouses. Inevitably, however, this oh-so-cosmopolitan setup gradually devolves into resentment, messy romance, and marital strife. Antony Cordier directed a script he wrote with Julie Peyr; the two previously collaborated on the 2005 feature Cold Showers. In French with subtitles.