Another thing to ask yourself when watching a documentary is who is left out of the telling of this story. Is the story fair to both sides? Is another perspective even presented? Who is funding this documentary? Is there a financial incentive to present this argument, this particular way? What is the director's overarching agenda? These are just some of the questions one should look at when evaluating the integrity of a film or filmmaker.
Another way documentaries are constructed is through their editing. An editor is often given hundreds of hours of footage that they must narrow down to a small sliver. They are able to rearrange things and take them out of context. Overlay B-Roll footage and compelling music on top of interviews to create an emotional appeal. They can cut out things that seem contrary to their argument, and cut around dialogue to make their interviewees seem more articulate.
As emotionally appealing the Kony 2012 campaign may seem when viewed on the surface, there is much more to the story than Invisible Children make it out to be. It is a complex issue that involved many parties and tragedy on both ends. By making the story simply binary, presenting "good" and "bad" (Kony), Invisible Children has over simplified the issue, preventing the general public from knowing the entire story.
If you are interested in investigating the story further, please read the blog posts below:
There are a few articles about it as well.
Follow the money. Always follow the money. It will tell you a lot about the incentives behind a particular message.