Imagine if this movie had blockbuster budget. I bet your version would differ from mine, but Hollywood would have Scarlet playing unbelievable soldier from Russia making the world a better place. What we have here is Olga playing brilliantly, looking almost believable as a soldier and trough her inner nightmares shining some light on this bleak immoral world. It is slow, but slow is smooth. I liked this film. I liked it a lot. There are no higher than life concepts, but why would we want another picture about cogs fighting in a world of global geopolitics. We want people doing it for other people and for themselves. In this essence A Sentinela is a brilliant 80-ies flick about family and revenge, but with grit and script of 21st century. Do not be rational about it, if you choose to watch it, just enjoy a the performance of someone doing what they think is right in their worldview.