Factual error: When in the cooking pot, corn, bell peppers, and bananas are all visible. None are native to Africa.
Factual error: The movie takes place during or shortly before World War I. At one point, Quatermain and Jessie find a German base. Thus, they are probably in one of the pre-World War I German African colonies (Probably German East Africa or German South West Africa). There is a red, white, and blue French flag flying over the camp instead of a German flag.