Sonakshi Sinha is working hard on her next film ‘Akira’, with AR Murugadoss helming the project. The actress has apparently been training in martial arts for her part in the movie. And Sonakshi seems all pepped up about picking up new challenges. “Being innovative and learning something new for a film is fun thing to do. It is also very exciting. I am just going with the flow. I am enjoying what I am learning,” said the actress. In this film, Sonakshi will share screen space with her father Shatrughan Sinha for the first time. ‘Akira’ is a remake of 2011 Tamil hit.