I'm kinda disappointed they changed the actor playing the colonel. He still did a good job, but i don't like seeing different people in sequels to a movie. Makes me think about that instead of the actual movie. There are many action scenes, smooth slowmotion effects, and alot of boom and bangs. Unfortunately, some of the glass breaking sounds were not very nice to my ears. All in all, a good movie for those who love sci-fi action that is within our realm of imagination.