I would say the best way to describe this movie, this documentary of a movie would be that it is most similar to some of the programs seen on the History Channel talking about sex slaves and human trafficking. I can't remember any of the programs specifically by name, but they do have them every now and then. I wouldn't be surprised if other extended cable channels also did their own works on these topics.
The material similar to those programmings found in this movie include government officials, law enforcement, journalists, and public interest groups citing facts and offering their knowledge of slaves and human trafficking as commodities for cheap/free labor, as child soldiers (noted especially in Africa), and sexual services. Victims also share their stories. What differs from the movie and the programs I've seen was Call + Response is backed by a lot of singers and bands who play to bring about more awareness of these issues and to help solve those issues. The final thing different is depending on where you see this, you may get pamphlets/handouts giving you links to how you can help stop human trafficking.
I felt the movie is actually well done. Don't get me wrong, I felt every bit compelled and emotional as when I saw these issues presented on cable, but the "seen this before" feel just made it feel like more of the same.
