Mumbai: Superstar Salman Khan, who has been delivering back to back successful films, says his father Salim Khan is his biggest critic. When asked who is his biggest critic, Salman said. "My dad is my biggest critic so his reaction is important. He comes back (after watching a film) and says forget it and go off to sleep. Sometimes he says forget this film and work harder on your next one." When further asked if his father is writing any script for him, he said: "My father is writing articles right now, he is tweeting right now and he is fantastic..." The actor says over the years he has become very choosy about his films. "I am very choosy. The amount of films I used to do earlier, I don't do them anymore because I am choosy with the films I am doing."