 In 1969, Denmark became the first country to abolish censorship, thereby decriminalizing pornography, which led to an explosion in investment and of commercially produced pornography.However, it continued to be banned in other countries, and had to be smuggled in, where it was sold "under the counter" or (sometimes) shown in "members only" cinema clubs.Nonetheless, and also in 1969, "Blue Movie" by Andy Warhol, was the first adult erotic film depicting explicit sexual intercourse to receive wide theatrical release in the United States.