Netflix offers a wide variety of films and TV shows, some of which can be quite long. The average size of a 3-hour movie file on Netflix is approximately 3.2GB. This is a significant amount of data and may require a large amount of storage space, depending on the type of device used to watch the movie. It is important to ensure a fast enough internet connection to stream the movie in its entirety, as any buffering or stuttering can ruin the viewing experience. Fortunately, Netflix provides a range of data usage options, so users can adjust their settings to optimize their streaming experience.