Africa Goes to the Fair.

"This film depicts modern American products and U.S. economic development through the U.S. national exhibit at the 1966 trade fair in Addis Ababa, Ehtiopia, which was attended by 360,000 Africans (including children from the Haile Selassie I Day School, who toured the exhibition as part of a classroom assignment)" (US National Archives). Directed by renowned cinematographer, Stevan Larner.