i don't know why so high rating?

Rating: 7/10 (2 June 2011)

Raiting definitely to high. Ordinary science fiction movie. Good effects, but some parts of the story is lost in to much imagination,I think it ran into exaggeration. If not play by Leonardo will be sure just movie.In my opinion estimate is overstated. Really don't know why is so much talking about this movie. In the end is like some action Rambo movie,to much shooting and killing..main actor kill like 100 people and nothing happen to him..what a crap. I don't like the review from some critics-if they spend more money in movie its not good movie..its simple average movie and also which actor here play some special role?