|Snow White as a warrior princess|
Is this something to worry about? In the sense that it's another example of a trend in modern society, I think that it is. Things go wrong when people don't identify wholly with their own sex. If you are in any way set against yourself as a man or a woman, then it becomes difficult to express yourself adequately in relationships with the opposite sex.
What does the recasting of Snow White suggest to girls? It suggests that to be the heroine you now have to mix a considerable amount of the masculine in with the feminine. It suggests that the feminine by itself is inadequate or inferior.
It's a pity the film makers went this way, as the preview suggests that the film is well made and likely to do well at the box office.