Five-time Tamil Nadu CM and DMK chief M Karunanidhi, who passed away on Tuesday, was a screenwriter for over 75 movies. Popularly known as 'Kalaignar' (artist), Karunanidhi's first movie as a screenwriter was Rajakumari, which starred MG Ramachandran, who later founded the AIADMK and became the DMK leader's political rival. Karunanidhi last wrote for the movie Ponnar Shankar in 2011.