They called for a break, and Gambon magicked up a cigarette from out of his beard. He and I were often to be found outside the stage that housed the Astronomy Tower, having 'a breath of fresh air' as we referred to it. There would be painters and plasterers and chippies and sparks, and among them all would be me and Dumbledore having a crafty cigarette.

From Borrower to wizard, Tom Felton's childhood was anything but ordinary. His early rise to fame saw him catapulted into the limelight aged ...