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Film culture is built on the practice of watching films, and is also shaped by discussions that people have about them. It can be spread through speech (amateur discussions, experts on TV, YouTube videos) or through writing (fanzines, magazines, websites). Digital technologies and the internet have led to the emergence of a new practice, which consists in developing a discourse based on movie or video sequences that are manipulated and distorted. This practice is known as “mashup” and it accompanies the advent of audiovisual literacy. However, there is a diversity of mashups that the author analyzes using Gérard Genette’s categories of transtextuality (intertextuality, paratextuality, metatextuality, architextuality, and hypertextuality).