Stephanie Block may be able to hit a high F, but playing Mary Poppins requires a lot of singing above that note, most notably the C above it at the end of "Brimestone and Treacle".
As for celebrities playing the part, the vocal range of the role makes stunt casting very difficult as it requires a competent soprano, not to mention a good dance training.
Updated On: 8/16/09 at 07:29 PM