Innocence (2004)

In a subterranean boarding school, hidden beneath a forest in some other time and place, six year-old Iris emerges out of a coffin and is introduced to her new home where she is to stay forever. Iris very quickly discovers the rules of the school, where "obedience is the only path to happiness" and through which an other-worldly anxiety about the outside world permeates. In this fantastical yet real world, young girls learn about the world through dance, physical education and biology. Helene de Fougerolles and Marion Cotillard are the only adult women in this film's practically all-girl cast.