Unsurprisingly, the most polluting stage of a film is its shooting. There are many examples of filming with a significant ecological impact. The carbon footprint of the French audiovisual industry amounted to 1.7 million tons of CO2 in 2018. That is the equivalent of a city like Reims. Initiatives are multiplying to counter it, like in Wallonia, where Benjamin Vanhagendoren has set up GREEN FILM Wallonia.