The beauty of this movie is in its simplicity. initially I found it a bit slow, and disconnected, but it all comes together in the end. The characteres are life-like and not exagerated, unlike what you find in a lot of Hollywood movies. Their emotions, their dilemas, their decisions are very real. No-one is portrayed as evil, or overly good, they are just decent human beings, doing what they can. For example it would have been easy to portray the belgian officer in charge of the UN forces at the school, as a baddy. But instead, we can see what it must have been like for him too, and the constraints that he has to work with. The title of the movie comes clear as an expression of how powerless the UN troops were, because of the lack of political backing. They can only shoot at the dogs.
This movie tries to help you understand how such horrors can actually happen. It shows one of the Hutus charactere, who also seems like a decent guy, getting sucked into the madness.
There are no heros in this movie, in the hollywood sense. Just ordinary good people trying to do what they think is right. This movie is very humble in the sense that it's telling a true story with no attempt to make it anything else than what it was. It really makes you think.