Spaceship Earth (2020)

The film is a real and stranger adventure film about eight dreamers who spent two years in a self-replicating earth ecosystem called Biosphere 2 in 1991. This experiment is a worldwide phenomenon, it records people's daily life in the face of life-threatening ecological disasters, and more and more people criticize it as nothing more than a cult. This bizarre story is both a cautionary tale and a hopeful lesson: how a small group of dreamers can reimagine a new world.