More than Kryptonite Endangers Superman.

According to the Vulture the Script for the new Superman suffers major third act problems. Not only that but apparently Warner Bros wants to get this film out as soon as possible because if they are not in production by 2013 the entire franchise will need to re-licensed by the original creators. I.E. the Siegal and Schuster families who are already in a bloody copyright war with DC.