I'm very sensitive. Because my mum was my primary emotional caregiver growing up, I found myself being pinned into dresses, darting her dresses, choosing her high heels for the evening or what to wear. I'm very much a mommy's boy.

Vanity is normal in performers. Does it bother other people? All the time. But nine times out of 10, that says more about them than you.

There's an abundance of exposure when you start working in American films. Inevitably you become a brand and that has to be controlled.

Then there's your diet. You cut out sugars, fat, soy sauces... anything that's nice. Tea and coffee is replaced by boiling water with lemon. It's amazing how quickly you get into it. There's also herbal tea and a lot of water, obviously... about two litres a day.

I think it's important that you always transform if you can. That's what I was trained to do. You try and hide yourself as much as you can - that's the key to longevity.

The lack of carbohydrates can make you a little crazy.

Every time you need protein, get yourself a boiled egg in. But your main meals would be chicken, or hummus, or white fish. You can lose about a pound a day. But you can do this stuff over a period of time, and you can have your happy days. It's about motivation and it has to be something that's realistic for you to keep up.