pursuing acting led to taking classes with Flo Salant Greenberg of The New Actors Workshop in New York City. She has also worked with acting coach Terry Knickerbocker. Rossum attended the Spence School, a private school in Manhattan, before dropping out to pursue career opportunities. She received her high school diploma at fifteen years old via online-extension courses offered by Stanford University's Education Program for Gifted Youth (EPGY). She enrolled at Columbia University, studying French, art history and philosophy. Career Acting Rossum's television debut was in August 1997, as the original Abigail Williams in the daytime soap opera As the World Turns. She also had a guest role as Caroline Beels in Snoops. Rossum was nominated for a Young Artist Award in 1999 for Best Performance in a TV movie for her work in the made-for-TV movie Genius. She then portrayed a young Audrey Hepburn in the ABC television film The Audrey Hepburn Story (2000). Rossum made her film debut at 13, in 2000's Songcatcher, as Deladis Slocumb, an Appalachian orphan. Debuting at the Sundance Film Festival, the film won the Special Jury Award for Outstanding Ensemble Performance. For her role, Rossum received an Independent Spirit Award nomination for Best Debut Performance and also had the opportunity to sing a duet with Dolly Parton on the Songcatcher soundtrack. Variety magazine named Rossum as "One of the Ten to Watch" in 2000. In Nola (2003), Rossum played the title character, an aspiring songwriter. In her first major studio film, Clint Eastwood's Mystic River (2003), Rossum starred as Katie Markum, the ill-fated daughter of small-business owner Jimmy Markum, played by Sean Penn. Rossum had a breakthrough role as Laura Chapman in the sci-fi-disaster film The Day After Tomorrow (2004). She later returned to New York, where she was the last to audition, in full costume and make-up, for the role of Christine Daaé in The Phantom of the Opera (2004), the onscreen adaptation of composer Andrew Lloyd Webber's musical of the same name. After having nearly missed the audition due to a family engagement, Rossum was asked to audition in person for Lloyd Webber at his home in New York. For her performance, Rossum received a Golden Globe Award nomination for Best Actress in a musical or comedy. She also received a Critics' Choice Award for Best Young Actress, along with a Saturn Award for Best Performance by a Younger Actor. In