The University of Southern California U.S. China Institute has produced a documentary about the role of China in the U.S. presidential elections:
The U.S.-China relationship is complicated and is vital for both countries and the world. Where do Senators McCain and Obama stand on U.S.-China trade, security, environmental, and human rights issues? How important has policy toward China been in past elections and in 2008? These are the questions explored in a USC U.S.-China Institute documentary.
The full documentary can be viewed here.