A Certain Smile [1958] [DVD]

After one innocent kiss a bittersweet romance eventually blossoms so naturally between young Dominique (Christine Carere) and the easygoing charmer Luc (Rossano Brazzi), who also happens to be married to Francoise (Joan Fontaine). There is a tug of war within Dominique as she tries to come to terms with her feelings for Luc as well as for young Bertrand who wants to marry her. Human nature being what it is, we can understand all too well what she goes through - the hopes and dreams, the joys and sorrows that make up life's experiences - all are a part of her growing up. However, there is a price to pay for gaining maturity but she comes through in the end. ~ imdb