Yeelen (Bambara for "brightness"/"light") is a 1987 Malian film directed by Souleymane Cissé, though the era is undefined, it is presumably set in the 13th century in which empire in West Africa, from 1230 to 1670?
Mali Empire The Mali Empire (Manding: "Nyeni" or "Niani"; also historically referred to as the Manden Kurufaba, sometimes shortened to Manden) was an empire in West Africa from 1230 to 1670. The empire was founded by Sundiata Keita and became renowned for the wealth of its rulers, especially Musa Keita. The Manding languages were spoken in the empire. It was the largest empire in West Africa and profoundly influenced the culture of West Africa through the spread of its language, laws and customs. Much of the recorded information about the Mali Empire comes from 14th century North African Arab historian Ibn Khaldun, 14th century Moroccan traveller Ibn Battuta and 16th century Moroccan traveller Leo Africanus. The other major source of information is Mandinka oral tradition, through storytellers known as griots.
Musa I of Mali Musa Keita I (c. 1280 c. 1337 ) was the tenth "Mansa", which translates as "sultan" (king), "conqueror", or emperor of the wealthy West African Mali Empire. At the time of Musa's rise to the throne, the Malian Empire consisted of territory formerly belonging to the Ghana Empire in present-day southern Mauritania and in Melle (Mali) and the immediate surrounding areas. Musa held many titles, including "Emir of Melle", "Lord of the Mines of Wangara", "Conqueror of Ghanata", and at least a dozen others. It is said that Mansa Musa had conquered 24 cities, each with surrounding districts containing villages and estates, during his reign. During his reign Mali may have been the largest producer of gold in the world at a point of exceptional demand. One of the richest people in history, he is known to have been enormously wealthy; reported as being inconceivably rich by contemporaries, "There’s really no way to put an accurate number on his wealth" (Davidson 2015).