With a literary background (hypokhâgne), Sylvie Gautier has been working in the audiovisual field since 1988, producing documentaries, first at Gédéon Programmes and then at Camera Lucinda. At the same time, she has developed several feature film projects. She moved on to directing with two short films "Il n'est pas nécessaire de le dire aux enfants" in 2018 and "Sotte" in 2019. Brillantes is her first feature film. The film was shot mainly in the Pays de Martigues, but also in Marseille, in the former cocoa factory of Saint-Menet.