Delphine and Muriel Coulin are French sisters who form a directing duo. They are best known for their film 17 Girls. Muriel Coulin began work as a cinematographer and camera assistant throughout the 1990s. Delphine is also a novelist. The sisters began collaborating on films in 1997 with the short film Il faut imaginer Sisyphe heureux (a reference to Albert Camus' The Myth of Sisyphus). The sisters made their feature film debut in 2011 with the film 17 Girls which was loosely based on the story of a group of Amer