In Grave Danger of Falling Food (1989) is a film about Bill Mollison, an Australian environmentalist best known as “the father of permaculture”. Permaculture is a system of design aiming at creating living environments modelled on natural ecosystems. The film also discusses the failures of modern agriculture and how a rainforest type environment with a lot of species living within a small area has the potential to produce food many times more efficiently than fields dedicated to just one crop. Even though shot over two decades ago, the ideas presented in this film are today perhaps more actual than ever. Directed by Tony Gailey and Julian Russell with music by Derek Williams.
(Sorry about the low quality VHS copy, but that’s all I could find.)