Quartile rating: 6.5/10 · 1 rating
In 1991 a group of countercultural visionaries built an enormous replica of earth’s ecosystem called Biosphere 2. When eight “biospherians” lived sealed inside, they faced ecological calamities and cult accusations. Their epic adventure is a cautionary tale but also a testament to the power of small groups reimagining the world.
Spaceship Earth covers a genuinely remarkable and underreported episode in American scientific and countercultural history — the Biosphere 2 experiment — giving it strong novelty value. The documentary benefits from rich archival footage and a story that naturally escalates with ecological crises and media spectacle. However, the narrative arc loses momentum in its latter half and the ending feels somewhat deflating, failing to fully reckon with the cult dynamics and legacy it raises. The 'acting' dimension (interview subjects and presentation) is serviceable but unremarkable, and the cinematography, while competent, leans heavily on archival material without adding much visual distinction of its own.