Actor Kangana Ranaut, who will soon be seen in a mutant avatar in Rakesh Roshan’s Krrish 3, has already started preparing for role in Revolver Rani. We’ve been informed that the fashionable star has, of late, been learning how to use a revolver for the Tigmanshu Dhulia film. The source says, “For about a week now, she has been attending classes at Film City in Goregaon and has been practising using a revolver. She wants to look like a professional while using the gun in the film. She’s investing a lot of time because she doesn’t want to come across as someone who doesn’t know what she’s doing.”Ask Kangana about what seems to be her new hobby, and she says, “I have been taking lesson on how to use a revolver. My trainer is teaching me how to hold it right, how to aim and load it. It’s nice. Pistols are okay, but I didn’t expect revolvers to be so heavy."