There is a body of films that feature home invasions. Paula Marantz Cohen says, "Such films reflect an increased fear of the erosion of distinctions between private and public space... These films also reflect a sense that the outside world is more dangerous and unpredictable than ever before." Home invasion films are commonly thrillers and horror films. The home invasion subgenre goes as far back as D. W. Griffith's 1909 film The Lonely Villa.