Guess Who’s Coming to Dinner? is a 1967 film about how the proudly liberal sensibilities of a white, San-Francisco couple (played by veteran movie stars Spencer Tracy and Katharine Hepburn) are tested when their daughter (Katherine Houghton) brings her fiancé, a distinguished Black doctor (Sidney Poitier), home to meet them. Stanley Kramer’s film was controversial but nonetheless won two Academy Awards. It was released in the same year that the Supreme Court ruled that laws prohibited interracial marriage were unconstitutional in the case of Loving v. Virginia. In 1967, only 3 percent of people had a spouse of a different ethnicity; in 2019, this figure had increased significantly to 19 percent. This simple composition, featuring photographs of the stars accompanied by text, was produced by the National Screen Service (NSS) that had taken over paper advertising for movies from the big Hollywood studios in the 1940s and continued in this role until the mid-1980s, turning it into an industry. The number 67/304 on the lower right does not indicate the place of this particular poster in a limited edition run (as collectors might hope), but rather that the Guess Who’s Coming to Dinner? poster was the 304th processed by the NSS in 1967. There are several variants, including one in full color and a horizontal one.