I hesitated to buy this one because of Pitch Black that was very poor... But rather, it's on par with Chronicles of Riddick, and this deserves 4 stars. Most entertaining, the action is constant and there's no loss of time during the movie. The monsters are cool, the world where it happens is nice, and the actors are fine. Riddick could have ended the story fast and clean, killing everyone from the moment he took the energy cells and leaving this desperate world before the storm. But he didn't do it. I think he fell in love with the woman when he saw here naked, and this made him change his plan. Big mistake, because he almost lost his life in the way. But I beleive the story is more interesting like this. I will be waiting for the sequel. After all, he now owns a starship, and there are a couple of treaters that most pay for what they have done to him.