La Sorelli

La Sorelli is completely out from the musical, but in the book she is the lead ballet dancer. I researched on her...and I found a french actress, born in 1873,with a very simillar name..and her looks are simillar, too. Cecile Sorel, or more widely known as Sorel. Here is the french wikipedia article, (I suggest you use a translating website if you don't speak french) http://fr.wikipedia.org/wiki/C%C3%A9cile_Sorel Could she be the one Leroux wrote about?