During her time on Veronica Mars, Bell reprised her role as Mary Lane in the film version of Reefer Madness: The Movie Musical, a stage production she had taken part in. She also portrayed the lead role in Pulse, a remake of a J-Horror film. In 2007, she joined the cast of Heroes playing the character Elle Bishop, and Gossip Girl as the offscreen titular narrator. Additionally, she played the title character in the comedy movie Forgetting Sarah Marshall. Bell has received a Satellite Award and Saturn Award, and has been nominated for a Television Critics Association Award and Teen Choice Award.