Michael Gambon has revealed how he incorporated a stash bag into his outfit while maming the Harry Potter films.
The screen legend, who portrayed Professor Albus Dumbledore in the wizarding film series, would often keep his cigarettes and lighter in this secret compartment.
"I had a little bag I'd made myself to keep my fags and lighter in, inside my costume," he said.
Michael, who reprises his role in Harry Potter And The Deathly Hallows Part 2, would also annoy the costume department by being messy with his food.
"I had a very long white beard - when I would have my sausage and chips for lunch, she wouldn't take the beard off, which annoyed me, so I used to feed the chips through it," he added.
The 70-year-old star would also get on Robbie Coltrane's nerves with his posh car.
"The other thing you did, which I'd like to tell the public about, was you parked your Ferrari outside my trailer so I couldn't open the door!" revealed Robbie.
"Your Ferrari! We're both car men, right? So I said: 'I can't open my door properly'. And you said: 'That's because I've brought my Ferrari in to humiliate you'."
:: Harry Potter And The Deathly Hallows Part 2 opens in cinemas on July 15.