Mountains of the Moon is a 1990 biographical film depicting the 1857–58 journey of Richard Francis Burton and John Hanning Speke in their expedition to Central Africa which culminated in Speke's discovery of the source of the Nile River and led to a bitter rivalry between the two men. The film stars Patrick Bergin as Burton and Iain Glen as Speke. Delroy Lindo made an early film appearance as an African whom the explorers meet.