Mumbai - One of the most sought after actresses of Bollywood, Katrina Kaif, who is presently busy in the shooting of Yash Chopra's upcoming romantic movie opposite Shahrukh Khan, feels the veteran filmmaker is still young at heart and has a very sharp mind. The yet untitled film, with which Chopra is returning to direction after a gap of eight years, is scheduled to be released on Diwali. Talking about the shooting experience with the director, Katrina said, "We had a shooting schedule in London...it was extremely nice. The weather was cold out there but we had a nice time". She added, "We think of Yashji as a senior and young at heart man. But you have to be on sets to understand how sharp he is. He picks up small things like something was disturbing me or something with my mood...he used to pick up all that...which no one else does. He is very special person." Addressing the press at the launch of book Rajneeti The film and Beyond, the actress also informed that she got injured during the shooting of the film but she took it as a sign of good luck. "I hurt myself on bike. While I was getting off the bike I hurt my leg as I had it on silencer. But in a way it is a good luck sign as every time I hurt myself during filmsit turns out to be good," Katrina said.