McGregor struggling to give up cigarettes

Ewan McGregor's ambitious 2004 motorbike trek has had one major negative effect on his life - he's started smoking again.

The Scottish actor had given up nicotine a year before he set off on his famous tour through Europe, Russia, Mongolia and North America, but now he can't get enough.

McGregor, who has overcome his dangerous love of booze, says: "Someone was rolling a cigarette and said, 'Do you want a roll-up?' Out of the blue, I thought, 'F**k yeah!'

"I was obsessed with smoking again, to the point where I couldn't think about anything else.

"I love smoking, and that's the trouble. I can be in a pub now with people drinking and not think about it, but if I smell a cigarette, I'm like, 'F**king hell.'"