Emmy Rossum starred in works.
Emmy Rossum . She is known for her portrayal of Fiona Gallagher in the television series Shameless . Rossum has starred in movies including Songcatcher ( 2000 ) , An American Rhapsody , ( 2001 ) and Passionada ( 2002 ) . Her role in Mystic River ( 2003 ) garnered her wider recognition . She starred in the science-fiction film The Day After Tomorrow ( 2004 ) and received critical acclaim for her performance in the leading role of Christine Daaé in The Phantom of the Opera ( 2004 ) .