A Fragile Vessel (2026) is a Documentary film that follows the hottest summer on record left Austin ablaze and terrified, a city where heat hits hardest in at-risk neighborhoods and communities of color. In the aftermath, the Castañón family walks into the woods, asking: What is heat? At a city-run heat-mapping event, they trace invisible threats and exercise small acts of agency, exploring how conversation—at home, with neighbors, with scientists and policy-makers—shapes the way we live in a world remade by heat. A Fragile Vessel is not currently listed with streaming providers in your selected region, but availability can change over time. Fans of documentary movies may also want to explore similar titles below.