Watch HDToday. 'The Secret Life of Girls' is a free-form documentary that follows a year in the life of two little sisters growing up against the backdrop of the changing New England Seasons. Told entirely from a child's perspective, the film puts a microscope on the small obstacles of youth, allowing us to see the beauty of everyday struggle. This big film about small things, reveals children to be little warriors, fighting for growth, experience, and the discovery of life's mysteries. For the brief course of the film, we are allowed to join them and get lost in the world of the senses.