Why so long, why so confusing?

Rating: 4/10 (28 April 2015)

My points are for the CGI alone, the rest of the film is too long and too confusing.
I have lots of issues with this movie, but I will not go on and on about them, I will just mention my main issue again, why is it so long? This film could have been done and dusted in 80 minutes, but no, it just goes on and on, which resulted in me getting bored and wondering why I bothered going to watch it.
Oblivion, which is kind of similar, is a masterpiece compared to this yawn fest. I see that in the reviews, people are 50/50 in their appreciation or condemnation of this film, I am in the latter camp.
It could have been so good, but I'm afraid the director spent to much time picking scenes where CGI could be incorporated. This detracts from what isn't a bad premise. Don't get me wrong, the CGI is excellent, its just that its over applied in many scenes.