 Their collaboration turned into a very deep artistic relationship, with Hayasaka contributing ideas to the visual part of the film.In his autobiography, Kurosawa would say that working with Hayasaka changed his views on how film music should be used; from then on, he viewed music as “counterpoint” to the image and not just an “accompaniment”.This is also the first film that Kurosawa used Toshiro Mifune as an actor.