Mountains of the Moon is a 1990 Rankcolor theatrical film depicting the 1857–58 journey of Richard Francis Burton and John Hanning Speke in their expedition to Central Africa – the project that culminated in Speke's discovery of the source of the Nile River. The expedition 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 native the adventurers meet.
The film was directed by Bob Rafelson, for whom this was something of a dream project. It was based on the novel Burton and Speke by William Harrison. The narrative concentrates on the relationship between the two very different men. A first time epic for Rafelson, it opened to positive reviews.