Sibyl (2019 film)  Sibyl is a 2019 French comedy-drama film directed by Justine Triet and starring Virginie Efira, Adèle Exarchopoulos and Gaspard Ulliel. It was selected to compete for the Palme d'Or at the 2019 Cannes Film Festival. Sibyl is a psychotherapist who returns to her first passion: writing. Her newest patient, Margot, is a troubled up-and-coming actress, who proves to be too tempting a source of inspiration. Fascinated almost to the point of obsession, Sibyl becomes more and more involved in Margot's tumultuous life. Filming took place in Paris, in studios located in Lyon and on the Italian island of Stromboli. On Rotten Tomatoes the film has an approval rating of 48% based on reviews from 21 critics.