A young sister and brother are abandoned in the harsh Australian outback and must learn to cope in the natural world, without their usual comforts, in this hypnotic masterpiece from Nicolas Roeg. Along the way, they meet a young aborigine on his “walkabout,” a rite of passage in which adolescent boys are initiated into manhood by journeying into the wilderness alone. Walkabout is a thrilling adventure as well as a provocative rumination on time and civilization.