Zack Snyder I had to give him a chance. I can't even say that I have much of an opinion either way of Abbie Cornish and Emily Browning. The two have been in a number of films that were just ok, but since their roles were pretty minor I couldn't base much of an opinion from them.
The film doesn't make a whole lot of sense. It plays out more like an attempt to do as much different CGI in as many different ways in one movie. The plot is confusing because we fail to understand what reality really is for these girls in an insane asylum. We start with the events that lead to "Baby Doll" being committed by her stepfather, then we are taken through a series of adventures as she attempts to steal the ideas necessary for making an escape. The adventures are like dreams that include the other girls from the asylum as they battle samurai, nazi's, and robots.
If you are looking for action for the sake of action while you shovel popcorn into your face look no further. If you are looking for a plot with good acting and action, keep looking.
IMDB Link: http://www.imdb.com/title/tt0978764/