
Bare breasts can be briefly seen twice. In one, a woman is nursing her baby. This is not meant to be sexual in any way. In the other instance, a woman turns over in bed and her breast can be seen for a second.
There are several sex scenes in this movie, although it's not terribly explicit other than a male character thrusting against a female character. However, very little nudity is seen during these scenes, except for a brief glimpse of a bare breast.
In terms of sexual elements/themes, this film is adapted from the classic novel by French writer Gustave Flaubert, Madame Bovary, and set in 1800s France, revolving around Emma Bovary, a beautiful woman who has a highly romanticized view of the world and is dissatisfied with her marriage to a simple country doctor in a small town. She craves excitement, passion, status, love, and begins trysts with other men behind her husbands back.