Raju Hirani is a rare director who wonderfully blends massy humour with intellectual brilliance. I asked Aamir Khan in an interview post the success of Talaash, if P.K. will also be having Hirani's trademark humour that works superbly with front benchers and this is what Khan had to say: "Raju has a great sense of humour and I think it is one of the big aspects of all his films. I think P.K. also has its fair share of humour."