The actors, let's face it, are bad. The young ones, are a little young for a movie like this. They should have hired more experienced actors for the roles, or different young actors. I would have liked to see The Rock as the main character, it would have been great to see a fight between him and the Predator... By the way, I think the Predator's tracking system, and a shoulder-cannon is broken, you can see clearly that the laser from it's mask is shutting down for an instant and sparks are coming from the right cannon