Scientific research in General and Comparative Literature has been enriched by a new comparative approach of Anglo-Saxon origin: ecocriticism. It is a reading grid focused on the ecological stakes of a given literary or media work. The present book entitled Literature, Cinema and Ecology : Ecocriticism in the light of some contemporary French media, which is the fruit of the reflection of the doctoral student Arthur Denos MONGA, is presented as a deciphering of the abundant French media production of the twentieth and twenty-first centuries centered on current issues such as climate change, sustainable development, the relationship between nature and culture, otherness, cosmic moralism, and ecofeminism. In this intermedia ecocritical analysis, two media were given special attention, namely Joseph Kessel's The Lion (1958) and Luc Jacquet's The Fox and the Child (2007). The author explained the methods and strategies mobilized by the novelist and the filmmaker to convey an environmentalist vision.