Summary: "Fat Girl" is a typically shocking, utterly discomfiting provocation from director Catherine Breillat, whose excursions into female psychology and movie sexuality are anything but clinical. (See "36 Fillette" and "Romance" for further proof.) Two adolescent sisters journey to the seaside on vacation with their parents; the younger sister is overweight and brooding, the older girl a beauty who attracts the attention of a smooth-talking boy. Much of the film is built around two painstaking seduction scenes, characteristically shot by Breillat with both comic and horrific overtones and long, uncomfortable takes. The final section then tips into an outright descent into hell--you can never let your guard down with Breillat. So complicated were the seduction scenes that Breillat subsequently made a feature about the shooting of them, "Sex Is Comedy". "Fat Girl" was released under an alternate title, "A ma soeur!", but "Fat Girl", in English, is Breillat's original and preferred title. "--Robert Horton"