I would say that it is not worth seeing even with the performance of Emmy. The movie was really bad and the ending was a total embarrassment. Can't endorse it. But you can listen to her singing voice at the official website:
http://www.nolathemovie.com/
She will play the role of Christine in the upcoming Schumacher musical Phantom of the Opera (2004). Wait for that one.
I expect big stardom for Emmy!