I just can't imagine what HASN'T been figured out at this point? How are there "creative differences" with three weeks left of shooting? Granted, most movies now days are edited WHILE shooting is going on, so maybe something was discovered/disagreed upon in the edit, but still. At this point, every last shot has been storyboarded and pre-prevised, the script is basically locked, the tone long since decided, costumes obviously finished, etc. I just can't remember anything like this happening, ever. So wild. Only thing I can think of is that Lord & Miller got some crazy idea during filming that would have ventured too far from the agreed upon path, whether it be story-wise, money-wise, or both. And then they just couldn't let go of it.