Orlando von Einsiedel's epic documentary is at once a stunning natural film, an intimate human drama, and an intense political thriller slash investigative report. The titular Virunga National Park, a UNESCO world heritage site in Eastern Congo, serves as the magnifying glass through which we witness the natural, human, and political crisis of this embattled and volatile region. There are poachers killing endangered gorillas, the bloody business of Big Oil companies, government forces fighting a myriad of militias, and, lastly, the three individuals struggling to protect Virunga and its mountain gorillas from death and destruction. The result is a snap-crackle-pop-type situation, like sitting on a powder keg. The film captures all this superbly with great editing, compelling real-life material, and gripping action. Virunga's intensity can rival a well-made fictional thriller any day of the week.