Check out UNC-Chapel Hill Libraries' documentaries and films through FilmFinder. If you need to edit a video, you can do so in the Media & Design Center's Digital Media Lab.
Chinese films:
Sunflower 《向日葵》 [DVD2741]
Blind Mountain 《盲山》 [65-DVD5737]
Riding Alone for Thousands of Miles 《千里走单骑》 [65-DVD3736]
Ren xiao yao 《任逍遙》 [ 65-DVD11786 ]