As Law laughs off that last point it seems a good time to go for the jugular. How are things going with Sienna?

'Great,' comes the answer - short and sharp. 'We're very happy.'

Being Alfie
Playing a love rat and finding love in the process has, of course, led to obvious comparisons between Law and his character.

But the truth is that Alfie is a dinosaur brought back to life for the purpose of this film. He sleeps around, thinks nothing of the consequences and lives for the next thrill. Alfie is a '60s throwback to the days of the sexual revolution.

Law himself admits his character would struggle in real life, but adds that most of the male population, himself included, can relate to him.

'I like to think everyone identifies with this guy,' says Law. 'I had my Alfie days. I think my late teens, you know, those years when suddenly you are legally allowed into bars and you are allowed into clubs.

'Suddenly you realise the world is kind of offering itself to you. But I guess if you look at my life, I was someone who always looked for commitment.

'I had my moment on Brooklyn Bridge at 21 rather than at 31 and that's why I got married and had children.

'But Alfie is not just about a guy who likes to screw around. It's about relationships. You can stand back and look at the wider picture. I think every one of us recognises at least one aspect in this film. We can identify with having been dumped or cheated on or being the cheater.'

Life with the beautiful people
Being handsome, rich and famous, many might think Law would be one of the few who could live the life of Alfie. He certainly has enough female admirers to play the field, should he wish.

'I think even when one is perceived to be good looking, if one is perceived to be beautiful, then I suppose one is thought to have the capacity to pull,' says the modest star, now obviously embarrassed by this line of questioning.

'But that doesn't necessarily deal with the internal workings of an individual and what makes them tick. I don't think it has anything to do with having pin-up looks. I think women like bad boys. That's been my experience.

'You know, at a certain age, you figure out what works for you and being a good boy never worked for me. If you're a bad boy, they like it, that's how I figured and I think it's kind of true. Don't you think?'

Alfie across The Pond
Law's Alfie is, of course, strikingly different from the '60s classic. For a start, it's not a drab, black-and-white London - that's been replaced by a modern, colourful New York where every female looks as though she's straight off the catwalk.

It must have been hard for a proud Brit to utter the line: 'I came to New York because they have the most beautiful women on the planet.'

'I don't know what the English will make of that particular line,' cringes Law. 'Alfie says a lot of things that could be deemed rather shocking. If the Brits pick up on that, then I think they're making a little bit of a fuss.

'He's someone who says what he thinks and he sticks by his opinion. It's not my opinion, it's Alfie's. That's not to say I think there are beautiful women everywhere, not only in London or in New York.'

As much as Law loves his English homeland, he admits to having a love affair with The Big Apple that started long before Alfie.