Director Mani Ratnam's Next Movie After 'OK Kanmani' Revealed. After the blockbuster success of 'OK Kanmani' which is made as a bilingual in Tamil and Malayalam, is all set to start his next project with actor Karthi. Mani Ratnam has chosen Karthi as his Hero for his upcoming flick. And Sai Pallavi (Premam fame) may play female lead in Karthi and Maniratnam's next movie. AR Rahman composes music for this untitled flick of Mani Ratnam. Keep visiting, we will give you interesting news on Director Mani Ratnam.