The title of Katell Quillévéré’s first movie, Un Poison Violent from 2010, was taken from Serge Gainsbourg’s song Un poison violent, c’est ça l’amour, and the awful toxicity of love is a theme that has run through her work ever since. It is an underground stream that has become very much an overground stream in this new, heartfelt movie. It’s robust and a little unsubtle, without the nuances and indirections that govern her best work, but handsomely produced and resoundingly performed, avowedly autobiographical and inspired by her grandmother. Quillévéré has said that her influences are Maurice Pialat for the tough...