Quillévéré's film (the script of which she co-wrote) is to some extent autobiographical, and she identifies with Anna's movement towards freedom: she begins as a somewhat religious young girl, but as Quillévéré lost her faith at the beginning of her adolescence, so Anna moves from an abstract love of God to the love of adolescent Pierre (Youen Leboulanger-Gourvil), a real person with whom she can share things. A lovely film.
I also saw Quillévéré's 18-minute short À bras le corps (2005), translated as With All My Might. Here, a the main actors are again young, some years younger than those in Love Like Poison, and the story concerns two young children whose mother doesn't (and indeed probably can't) wake up in the morning. It's inevitably slight and was made several years earlier, but there's an obvious mischievous energy in it which is not dissimilar to that which shines through the later feature.
Petits entretiens filmés - A Violent Poison | Kattell Quillévéré