During an 'Ask Me Anything' session on Twitter, Shah Rukh Khan revealed he watched movies of director Atlee and South superstars Rajinikanth, Allu Arjun, Thalapathy Vijay and Yash to prepare for his role in 'Jawan'. Shah Rukh explained that he did so "to understand...language of expression for the world that was being created". 'Jawan' will release on September 7.