Laura Linney is seen in a still photo a few times lying on a bed with her breasts showing.
Laura Linney is seen nude lying on top of her husband, just her bare back and the top of her butt is seen. This is shown at two different points of the movie.
Laura Linney is seen lying in bed with her lover and as she rolls over to face him, her left breast is briefly seen.
Antonio Banderas is pictured in a still photo nude, as he's holding a towel covering his private parts (although female actresses in this film are not affirmed the same privacy). This is seen several times throughout the movie.
A couple scenes where couples (including one infidelity situation) kiss tenderly and passionately, sometimes in bed. Nothing else is shown. No actual sex scenes.
The basic plot is about Laura Linney's character cheating on her husband, as seen in still photos and flashbacks.