When Rajiv and I were preparing to shoot Kadal, we saw lot of films which involved shooting in the sea. Very few Indian films were shot in the sea, but one film which caught our attention was Chemmeen, based on the famous book by Thakazhi Sivasankara Pillai, directed by Ramu Kariat and shot by Marcus Bartley the legend. It is still a classic and even today, some of the shots take your breath away.