James Cameron made himself a billion dollars selling schlock. So now gets to spend $250 million to make the exact movie he wants, no limits, no compromise, embodying the ideas and values he developed very early in his career and has held fast to ever since. If you’re James Cameron, this is the movie you’ve always wanted to see and you still want to see, because, one is forced to suppose, your emotional and intellectual maturation came to a halt when you were twelve years old.