Mountains of the Moon

The movie mountains of the moon is about 2 explorers who set forth to find the source of the Nile River. The European people were far more advanced, but they succumbed to diseases, like malaria from mosquitoes. They also needed some help in communicating with the people in Africa, so they found a guide like person. They named the lake after Queen Victoria because they had found the lake and they wanted to honor their queen. Then they went back to Europe, where one man killed himself, and the other debated on the possible source of the river.