I don't really know all this stuff, but I'm a fairly efficient Googler . . .

There is also a clicking language spoken by the San people from the Kalahari Desert. As an example, see N!xau , the main character in the movie THE GODS MUST BE CRAZY (and its first sequel).  His name is a usual transliteration of his original language, Ungwatsi, which uses clicking sounds that have no equivalent letter in the Roman alphabet. 

According to one site discussing the language, "Actually believe it or not you can't learn [the Ungwatsi] language. The people of the Kalahari Desert have an evolutionary abnormality that allows them to make the pronunciations need (sic) for that language."

Scene Two from the movie is below, and if you click the link next to the video cover shot you can watch the entire first movie for free on YouTube.

http://www.youtube.com/watch?v=mI-WJtGC8dI&wide=1

Kalahari bushman Xi (played by genuine bushman N!xau) is as surprised as the rest of his tibe when a Coke bottle, thrown from a passing plane, lands in the middle of their village. This "gift from the gods" proves to be a mixed blessing when the tribesmen fight over it and eventually use it for a weapon. To keep peace in the village, Xi is assigned to take the bottle to "the end of the earth" (actually a lush valley) and throw it back to the gods.

Forest Patrol is back!! My wish was granted.

Also, Hannah looks incredibly small between Rhett and Link. Then again, most people do. I would maybe come up to Rhett's waist, for example.

On a subject totally unrelated to the click languages of Africa . . . did anyone else get the feeling that this scene is a just little too close for comfort . . . even for the best of friends?