In one of the funniest and most enchanting of Éric Rohmer’s Six Moral Tales, a 35-year-old French diplomat engaged to be married in a month finds himself attracted to two teenage sisters he meets while vacationing at a lakefront villa. He fixates on the sensuous knee of the older one, which he yearns to caress. Nestor Almendros did the shimmering summertime cinematography. Subtitles. DCP. 105 min.