Yash Raj Films (YRF) has decided not to screen Salman Khan-starrer Ek Tha Tiger for deceased RAW agent Ravindra Kaushik's family, who has sent the filmmakers a legal notice asking for a screening of the film.The production house and director Kabir Khan have decided to keep the film and its content away from public domain."I read about him in the papers. This is the first time I've heard of him. It's an interesting story. But it's not the story of my film," said Khan.The director didn't say more regarding the issue, but according to a source, the film takes Salman on a completely different route from Kaushik's story."Kaushik was caught and jailed in Pakistan. He died in prison across there. Salman's character comes to an entirely different end. That's why the film is called Ek Tha Tiger. He is like an unsolved mystery," said the source.