I was really hoping that Duncan Jones would get the nod even though it would have delayed "Mute" which I'm really looking forward to seeing. I think he would have been able to make an amazingly good Superman movie. I am inclined to believe that it was indeed "Mute" that made Duncan pass on this opportunity but I've not read anything to really make that comment, it's just speculation. I know that another concern is Zack's use of CGI and green screen. I will admit that this is something that has me concerned about this project but not to the extent others are.