to audition for the role of Elle, who made her first appearance in an October 2007 episode, and appeared in twelve episodes during the run of the series. The casting of Bell, Heroes creator Tim Kring explained, "was not easy to pull off", but because of the large ensemble cast of the series and multiple story arcs, "we found a way to jump into a small window in [Bell's] schedule." Bell lent her voice to the CW series Gossip Girl: she voiced the title character in every episode of the series, appearing in person only for a surprise cameo in the final episode, portraying herself. Shortly after the cancelation of Veronica Mars in early 2007, Bell filmed on location in Hawaii for a starring role as the title character in the Judd Apatow comedy Forgetting Sarah Marshall. She regarded the improvisational comedy in the film as "a lovely experience". The film, written by and also starring Jason Segel, was released theatrically on April 18, 2008, and greatly increased Bell's profile. Bell lent her voice and likeness to the video game Assassin's Creed, which was released in November 2007 for consoles and April 2008 for the PC. Bell reprised her role of Lucy in Assassin's Creed II, released in November 2009, and again in Assassin's Creed: Brotherhood, released in November 2010. In the spring of 2006, she finished filming the Star Wars-themed comedy Fanboys. Director Kyle Newman received additional funding to shoot new scenes, but the busy schedules of the actors only allowed for filming in September 2007. As a result, the release was delayed until January 14, 2008. Bell also starred in the 2009 comedies Serious Moonlight, alongside Meg Ryan, and Couples Retreat, which chronicles four couples who partake in therapy sessions at a tropical island resort. Jason Bateman played her husband. She also provided the voice for Cora in Astro Boy. On March 31, 2008, Bell began shooting the Mark Steven Johnson-written Disney film When in Rome on location in Rome and New York; the film was released in 2010. Bell reprised her role as Sarah Marshall for a cameo appearance in the film Get Him to the Greek, a spin-off sequel from Forgetting Sarah Marshall, released June 4, 2010. Bell co-starred alongside singers Christina Aguilera and Cher in the backstage musical film Burlesque, which was released in November 2010. She also had a cameo appearance alongside Anna Paquin