The ongoing COVID-19 pandemic reminds us that human and more-than-human health is connected to environmental (un)health. This article explores the linkages between health and the environment in cinema. It draws on such issues as pandemics, pollution, and air to illustrate how films like Wolfgang Petersen’s Outbreak (1995), Todd Haynes’s Safe (1995), M. Night Shyamalan’s The Happening (2008), Steven Soderbergh’s Contagion (2011), and Colm McCarthy’s The Girl with All the Gifts (2016), each in their unique ways, address the problem of planetary health. Airborne zoonoses, monstrous plants, toxic fungi, and pollution—the films tackle all these issues to emphasize invisible danger, toxicity, and sickness that surround humans and more-than-humans alike. Connecting the ideas of health and well-being to the environment, and illustrating how this nexus becomes visible in film, specifically through air, this article calls for justice, consideration, and care of planetary health. Explicating the tight linkages between pandemics, climate change, and environmental degradation at large, as depicted in the selected cinematic examples, this article claims that the recognition of humanity’s dependence on and responsibility for more-than-humans is crucial in times of environmental and health crises.