I'm doing a new musical on Broadway, which opens in October called The Boy from Oz, where I play Peter Allen. For those of you who don't know, he became first famous in America for marrying Liza Minelli.

I've never heard my dad say a bad word about anybody. He always keeps his emotions in check and is a true gentleman. I was taught that losing it was indulgent, a selfish act.

I lived with a coffee farmer called Dukale on a trip I made with World Vision to Ethiopia, and realised there's no good reason for the disparity in opportunity around the world.

I remember at one point being in fellowship, and everyone used to wear the fish symbol; it said you were a Christian. So I asked my father, 'Dad, why don't you wear that at work?' And he said, 'Your religion should be in your actions.' He set a great, great example.

My kids are not that interested in my movie career, by the way. My son, in particular, never talks about it. He just wants me as his dad.

I once sang 'Summer Nights,' from 'Grease,' at a bar in Melbourne with John Travolta, who's a good friend of mine. He looked cool singing the part of Danny - sitting in an armchair, smoking a cigar - while I got stuck playing Sandy.

There was a whole display set up of all the X-Men paraphernalia. My wife couldn't resist telling this 5-year-old boy that I was Wolverine. The little kid looked up at me and he was staring at me.