Emmy Rossum was in a novel written by Agatha Christie.
Dame Agatha Mary Clarissa Christie , Lady Mallowan , DBE ( née Miller ; 15 September 1890 -- 12 January 1976 ) was an English crime novelist , short story writer and playwright . Emmy Rossum . She has since starred in Poseidon ( 2006 ) , Dragonball : Evolution ( 2009 ) , Dare ( 2009 ) , Beautiful Creatures ( 2013 ) , Before I Disappear ( 2014 ) , You 're Not You ( 2014 ) and Comet ( 2014 ) .