2006, Rossum appeared in Poseidon, Wolfgang Petersen's remake of the disaster film The Poseidon Adventure. She played Jennifer Ramsey, the daughter of Kurt Russell's character. Rossum described the character as being proactive and strong in all situations, rather than a damsel in distress. Rossum also appeared as Juliet Capulet in a 2006 Williamstown Theatre Festival production of William Shakespeare's Romeo and Juliet. In early 2009, Rossum appeared in a poorly received Dragonball Evolution. Her next big screen venture was the indie Dare, which was an official selection of the 2009 Sundance Film Festival. In November 2009, Rossum appeared in Broadway's 24 Hour Plays in which actors, writers, and directors collaborate to produce, and perform six one-act plays within 24 hours to benefit the Urban Arts Partnership. Rossum appeared in Warren Leight's "Daily Bread", directed by Lucie Tiberghien. In December 2009, Rossum joined the cast of the Showtime dramedy series Shameless, based on the British series of the same title. The series co-stars William H. Macy. Rossum plays the oldest sister of a large, motherless family, functioning as a guardian/surrogate mother to her five younger siblings. The series has received consistent acclaim, with Rossum's performance being universally praised. She made her directorial debut with episode four of season seven, "I Am a Storm." In December 2016, Rossum was in a contract dispute with the show's producers over her desire for a salary equal to that of co-star Macy and back pay for the differential over seven seasons, which was resolved later that month. Following this news, Shameless was renewed for its eighth season beginning production in 2017. In August 2018, Rossum announced her departure from Shameless after nine seasons. In mid-2011, Rossum starred in D. J. Caruso's social film, Inside; the online film aired in several segments, incorporating multiple social media platforms including Facebook, YouTube, and Twitter. The following year, Rossum played Ridley, a siren Caster in Beautiful Creatures (2013), based on the young adult fantasy novel of the same name. Although the film was released to mixed reviews, Rossum's performance was praised by critics and fans. She also starred in the drama You're Not You as Bec, an inexperienced caregiver who looks after and befriends Kate (Hilary Swank), who suffers from the degenerative disease ALS. By June 2013, Rossum was cast as the female lead opposite Justin Long in the independent romantic comedy Comet, which was directed by Sam Esmail,