I am a sci-fi buff from way back in the 60's and I have seen a lot of "B" flix. I would rate this movie as a "B" flick but better than most. Everyone is complaining of the bad acting. They need to go back to the beginning and pay attention to the opening scenes plus I recall something said about them being without emotion...that would explains a lot about the personality of the lead character. The littlest girl was just plain terrible they could have left her out. To me I thought it was an over all good movie. I was surprised that I figured out the twist. If I knew any sci-fi buffs I would recommend this movie.