Henry Morton Stanley's first trans-Africa exploration for and successfully found the missionary and explorer Livingstone, greeting him with the famous (though disputed) words: “Dr. Livingstone, I presume?” Stanley's journey had four principal aims, to: There was controversy among earlier explorers as to whether these lakes and rivers were connected to each other and the Nile. Richard Burton thought that Lake Victoria might have a southern inlet, possibly from Lake Albert, meaning that the source of the Nile was not Lake Victoria as Speke had argued. Samuel Baker thought that Lake Albert might have an inlet from Lake Tanganyika. Livingstone thought that Lualaba was the source of
Bob Rafelson "Black Widow" are the joys of a film well made--the cinematography of Conrad Hall, the production design of Gene Callahan, and a fabulous cast," which also featured Dennis Hopper, Nicol Williamson, and Diane Ladd. In 1990 Rafelson directed "Mountains of the Moon", a film about 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. It starred Patrick Bergin as Burton and Iain Glen as Speke, and was hailed by critic Roger Ebert as "completely absorbing." Ebert continued,