The 27-year-old says it's not for lack of enthusiasm from the film's cast that the shooting hasn't begun, reported Access Hollywood. "I don't know. I hope so! But I don't know," Mara said, when asked if there are plans to begin shooting "The Girl Who Played with Fire" - the next film in the English-language version series based on Stieg Larsson's Millennium Trilogy.u00a0