These films were the first adult erotic films depicting explicit sex to receive wide theatrical release in the United States. This American period, which had subsequently spread internationally, and that began before the legalization of pornography in Denmark on July 1, 1969, started on June 12, 1969, with the theatrical release of the film Blue Movie directed by Andy Warhol, and, somewhat later, with the release of the 1970 film Mona produced by Bill Osco. The term ' Golden Age of Porn', or ' porno chic', refers to a 15-year period (1969–1984) in commercial American pornography, in which sexually explicit films experienced positive attention from mainstream cinemas, movie critics, and the general public. Porn producers, critics, porn fans, and celebrities The film Deep Throat helped inaugurate the Golden Age of Porn.