Since the first studies by the Copenhagen School, securitization theories have been criticized, revised and completed. These theoretical frameworks have been applied to multiple cases and among this growing literature, there is a deep interest in the securitization of environmental issues in which this paper seeks to contribute. At the crossroads between critical security studies and pop culture analysis, this communication intends to study how the American film industry contributes to the construction of the environment as a threat to security through an application of the discourse analysis approach to Hollywood's production since the 2004 famous blockbuster The Day After Tomorrow. Based on a selection of movies released in the last ten years on extreme climatic events and on conflicts over natural resources, the paper will identify the type of movies that participate in this securitization process, the threat that these fictions describe, and the different cinematographic tools that are used to do so. Finally, we will also look at how these techniques are then re-used outside of the fiction sphere into documentaries such as An Inconvenient Truth featuring US former Vice-President Al Gore. This paper hence aims to encourage more dialogue between critical security studies and pop culture analysis.