This is a serious and gritty movie with some very good action scenes. There are some technicalities that made me say "Huh?" but they do not detract from the overall experience. Excellent climax for Endoskeleton fans. Sam Worthington's character is the best part of the plot, and he nails his role. The Kyle Reese character as written is more victim than soldier; as played it reminds me too much of Frodo. The script lacks the cuteness of T3. The soundtrack adds to the experience but is not overwhelming. I am an Arnold fan but this movie does not suffer without his physical presence. I will see this movie again.