Structural film is a type of movie that is more concerned with its structure and visual elements than its narrative. It often doesn't have a traditional story or characters, and instead relies on unique editing techniques and camera movements to connect different images and create abstract visuals. Structural films also often use sounds and music to emphasize certain images or enhance the overall mood. They can be interesting to watch because they can focus on things like shape, color, pacing, and repetition in a way that regular movies don't.