Between 1950 and 1958, John Marshall made four expeditions to film the Ju/'hoansi (a group of !Kung Bushmen) of the Nyae Nyae region of Namibia (then South West Africa). Marshall and his family, who together undertook an extensive multi-disciplinary study of Ju/'hoansi, spent the greatest amount of time with the people of /Gautcha, including ≠Oma, !U, Tsamko, N!ai, and /Gunda. During this time, Marshall shot over 300,000 feet of 16mm film (157 hours). He later produced a total of 23 films exclusively from this footage. 15 of those are short films that Marshall referred to as "sequence films." Each focuses on a single event, providing the viewer a brief introduction followed by an uninterrupted sequence.