"The Navidson Record" is a fictional documentary film within the novel "House of Leaves" by Mark Z. Danielewski. It tells the story of a family, the Navidsons, who move into a house that is larger on the inside than it is on the outside. This mysterious phenomenon leads to a series of unsettling events as they explore the house's shifting dimensions. The film is presented as a found footage project, featuring interviews, photographs, and various media formats. It raises questions about perception, reality, and the nature of fear, making it a complex narrative that challenges traditional storytelling methods.