As observed by recent studies such as the FAO & WHO (2019) and EAT–Lancet Commission on healthy diets from sustainable food systems (2019),the dominant global diet is a major contributor to the climate crisis. In thenear future, societies in particular in the global north, must change theirdiets, and also transform the way that food is produced, transported andconsumed. Such transformation faces considerable practical systemic andlogistical problems, but it is also a major cultural challenge since the wayspeople eat are closely and intimately connected to cultural heritage and to thesocial norms, orders and identities that this heritage sustains. This paperaddresses this challenge by investigating the ways that present and futurefood cultures are mediated in contemporary cinema culture. It explores howcinematic food narratives communicate both reactionary (nostalgic) andradical (sustainable) ideas about food and eating, and how truthfully thesenarratives mediate the general scientific consensus of the need of changedattitudes towards food. It also explores the complexity between scientifictruth claims and food cultures framed as authentic.