桃乐丝（费尔鲁扎·鲍克 Fairuza Balk 饰）对曾在奥兹国经历的一切都无比的怀念，无奈她弄丢了能够帮助她前往彼处的红宝石鞋。叔叔和婶婶以为桃乐丝已经疯了，将她送进了精神病院，在那里，桃乐丝遇见了一个陌生的女孩，在女孩的帮助下，…

An exploration of the history, artistry, and emotional power of cinema sound, as revealed by legendary sound designers and visionary directors, via interviews, clips from movies, and a look at their actual process of cre…