<p> These days Sakthi Vasu, son of famous director P Vasu has been very choosy in selecting the scripts. Just a couple of weeks ago, he entertained everyone as the friendly and the ferocious ghost in the movie Shivalinga.<br /> <br /> &ldquo;I started working for 7 Naatkal much earlier to Shivalinga but that movie came first,&rdquo; says Sakthi who plays a Radio Jockey in Big FM in the movie.<br /> <br /> &ldquo;Talking fast like a RJ is no easy deal which I learned the hard way during the shoot. Repeating the same in the dubbing was such a nightmare,&rdquo; he laughs. 7 Naatkal directed by Gautham VR also features Ganesh Venkatraman, Nikesha Patel in the lead cast. The film is produced by Million Dollar Movies.</p>