Sorry, but Mark Romanek's vision of Cinderella did not have enough clothed mice for Disney's taste.
According to Deadline, the director and studio have now parted way on their revisionist fairy tale, which already has a script from Chris Weitz and Aline Brosh McKenna and Cate Blanchett attached to play mean stepmother. As is so often the case when it's not "scheduling difficulties," the split reportedly had to do with creative differences: Romanek was uncompromising in his dark vision of the Cinderella story, while Disney was unwilling to realize the edgy, gritty realities of the tale synonymous with happy endings.
Confirming the news, Disney has already added that they remain "committed to moving the project forward and have begun the search for a new director." Perhaps someone who gets less mopey about the idea of glass footwear and pumpkin transportation.