Premise: Iain Glen ( born 24 June 1961 ) is a Scottish film , television , and stage actor . 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 film stars Patrick Bergin as Burton and Iain Glen as Speke .
Hypothesis: Mountains of the Moon (film) features a Scottish actor in a lead role.
Label: ENTAILMENT