When it comes to insight into Tarkovsky's work and beliefs, the film is unable to offer more than what he had already expressed -more extensively and clearly- in his own book, Sculpting in Time. The interviews accompanied with old photographs and footage and poetry, never get to be more than the mere sum of the parts. All the insight comes from Tarkovsky's words, while his son (the director of the documentary) only adorns them without giving his own perspective or communicating any unique emotion. Nevertheless, the film manages to cover all the key points of Tarkovsky's ideas and the essence of each one of his movies, in a quiet and pleasant meditative style, so that by the end you are left with the feeling of having glimpsed the core of his life.