Robert De Niro disguised himself as a homeless man and spent a day at a shelter in Boston as he researched his role for Being Flynn. Our B-town celebs too work hard to get into their character’s skin. Read on:

Perfectionist Khan is training hard for Dhoom3. First Aamir learnt ballet dancing, and now he is taking keen interest in learning parkour, a French art form that requires the body to be extremely agile