For the first time in his two decade long career, Aamir Khan did a double role in Dhoom 3. Now the buzz is that he might be playing two characters in his next, PK, directed by Rajkumar Hirani. A source says, “Aamir was very upset when the news of his double role in Dhoom 3 leaked out so this time everything is being kept under wraps with more care. He is said to play the roles of both God and an alien in the film. Hirani has issued everyone on the sets a stern warning that nothing about Aamir’s role should come out as he wants to reveal the look in a big way.”Oops, looks like the cat is out of the bag again!