Pornographic film

Pornographic films (pornos), erotic films, sex films, 18+ films, or also known as blue movie or blue film (in British English and other English-speaking countries), are films that present sexually explicit subject matter in order to arouse, fascinate, or satisfy the viewer. Pornographic films present sexual fantasies and usually include erotically stimulating material such as nudity (softcore) and sexual intercourse (hardcore). A distinction is sometimes made between "erotic" and "pornographic" films on the basis that the latter category contains more explicit sexuality, and focuses more on arousal than storytelling; the distinction is highly subjective.

Pornographic films are produced and distributed on a variety of media, depending on the demand and technology available, including traditional footage in various formats, home video, DVDs, mobile devices, Internet download, cable TV, in addition to other media. Pornography is often sold or rented on DVD; shown through Internet streaming, specialty channels and pay-per-view on cable and satellite; and viewed in rapidly disappearing adult theaters. Often due to broadcast or print censorship commissions; general public opinion; public decency laws; or religious pressure groups; overly sexualised content is generally not permitted to be shown in mainstream media, or on free-to-air television.

Films with risqué content have been produced since the invention of motion picture in the 1880s. Production of such films was profitable, and a number of producers began to specialize in their production. Various groups within society considered such depictions immoral, labeled them "pornographic", and attempted to have them suppressed under other obscenity laws, with varying degrees of success. Such films continued to be produced, and could only be distributed by underground channels. Because the viewing of such films carried a social stigma, they were viewed at brothels, adult movie theaters, stag parties, home, private clubs, and night cinemas.

In the 1970s, during the Golden Age of Porn, pornographic films were semi-legitimized; by the 1980s, pornography on home video achieved wider distribution. The rise of the Internet in the late 1990s and early 2000s changed the way pornographic films were distributed, complicating censorship regimes around the world and legal prosecutions of "obscenity".