The Gods Must Be Crazy (1980)

Xi and his San tribe live happily in the Kalahari Desert, away from industrial civilization. One day, a glass Coca-Cola bottle is thrown out of an airplane by a pilot and falls to the ground unbroken. Initially, Xi's people assume the bottle to be a gift from their gods, just as they believe plants and animals are, and find many uses for it. Unlike other gifts, however, there is only one glass bottle, which causes unforeseen conflict within the tribe. As a result, Xi, wearing only a loincloth, decides to make a pilgrimage to the edge of the world and dispose of the divisive object.