Planet City, 2020, is a newly commissioned immersive film by Australian film director and speculative architect Liam Young, which provides a window into an alternative urban future that has been created as an antidote to the climate crisis. Planet City is simultaneously an extraordinary image of tomorrow and a provocative examination of the pertinent questions that face us today. The work considers what might happen if we radically reverse the sprawl of cities, instead housing the world’s projected population in one super dense, but workable, city. Based on extensive research, involving a global think tank of advisers and collaborators, Planet City shares what it could be like to house all humans and their attendant infrastructure and resources in a city for ten billion, enabling the rest of the globe to heal as a vast wilderness.