Frakas Prods., the Belgian independent company behind Julia Ducournau’s “Raw,” is collaborating with another promising filmmaker, Christophe Hermans, on his feature debut, “Hive,” which a teenage-driven psychological thriller. The film, which just wrapped shooting, is headlined Ludivine Sagnier opposite Sophie Breyer, Mara Taquin and Bonnie Duvauchelle, as well as Romain Guillermic.