During production, the actress playing the leader of the factory workers, Yōko Yaguchi, was chosen by her colleagues to present their demands to the director. She and Kurosawa were constantly at loggerheads, and it was through these arguments that the two, paradoxically, became close. They married on May 21, 1945, with Yaguchi two months pregnant (she never resumed her acting career), and the couple would remain together until her death in 1985. They had two children, both surviving Kurosawa : a son, Hisao, born December 20, 1945, who served as producer on some of his father's last projects, and Kazuko, a daughter, born April 29, 1954, who became a costume designer.