The Linguists...
I recently watched a movie called "The Linguists", which is about two linguists who travel to learn languages from and about people in rather remote locations. It's a really interested documentary, that goes from Siberia, to India, Arizona, and Bolivia (amongst other locations included in the extra material). The linguists meet people who speak a variety of languages, including speakers of Chulym in Siberia, of whom there are less than 25 fluent speakers in the world.
I'd highly recommend the 64-minute film, which can be found online for free.