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This is a love story off the beaten track clearly in the tradition of Louis Malle and Francois Truffaut, told without prudishness or gratuitous violence.
The title refers to a children's dress size that the 14-year-old lead, Lili, played with snap by Delphine Zentout, is bursting out of. Billed as a "French Lolita," Zentout is not all that fetching at first glance. She's a chubbette with light skin and thick black hair and not exactly pretty. But she has intriguing eyes and a saucy way about her.
Lili is "discovering" her sexuality, but won't let herself be impregnated. The playboy, played with grace and economy by Jean-Pierre Leaud, falls in love with her in spite of himself and "tolerates" her reluctance while being partially satisfied in other ways, one of which we used to call a "cold f..." They are a believable match because sexually they are equal: she precocious, he experienced.
Catherine Beillat directs without sentimentality while guiding Zentout to an interpretation that transcends the American brat style and leads us to a thoughtful view of feminine sexuality.