Two teenage girls find their interests and attractions taking decidedly different directions as they mature in this coming-of-age drama from France. Gwen (Isild Le Besco) is a 15-year-old growing up quickly in a French coastal town, where her open-minded mother Celine (Pascale Bussieres) and father Alain (Pascal Eslo) give her free reign. Gwen has already developed a keen appreciation for the opposite sex, and while she's initially upset when she learns that her close friend Lise (Karen Alyx) will not -- as she normally does -- come with her family from Paris to spend the summer at the beach, she takes the news in stride and pays little mind to her friend's misfortunes. As it turns out, Lise's father walked out on the family ten years ago, and they've received word that he has died, which proves highly traumatic for both Lise and her mother (Marie Riviere). Needing to get away from her home, Lise hops a train to the coast and pays Gwen a visit, but she soon discovers that her friend is more interested in the local boys than in Lise's recent problems. Gwen, on the other hand, senses that Lise's interest in her may be growing beyond simple friendship. Les Filles Ne Savent Pas Nager was the debut feature from director Anne-Sophie Birot, and was enthusiastically received at the 2000 Montreal World Film Festival.