‘Let’s be honest, I have enough money to never have to work again. It’s only just recently that I’ve really come round to the idea of carrying on with acting at all. 

I knew I was the perfect nine-year-old to play Hermione. But I was concerned that all would come out after that was Hermione. 

And if that had happened – well, I would know I couldn’t act. And then that would be it.’

In a world glutted on the cult of celebrity, Emma Watson is the glorious detoxifying cure. 

She has no interest in fame or recognition; as a child she never considered being an actress. 

She was born of Oxbridge parents and now she’s considering an Oxbridge place herself, with a bright mind, bright looks and £10 million in the bank. 

You understand even more why she would relish the academic diversion of reading English and Philosophy at a Cambridge college when she gives her perspective on her coming-of-age birthday celebrations last year.

‘It was pretty tough turning 18,’ she says. ‘I realised that overnight I’d become fair game. I had a party in town and the pavements were just knee-deep with photographers trying to get a shot of me looking drunk, which wasn’t going to happen. I don’t have to drink to have a good time. The sickest part was when one photographer lay down on the floor to get a shot up my skirt.

‘The night it was legal for them to do it, they did it. I woke up the next day and felt completely violated by it all. That’s not something I want in my life. I just kept thinking that if it had happened a day earlier people would have sued their a***s off.

‘I find this whole thing about being 18 and everyone expecting me to be this object… I find the whole concept of being ‘sexy’ embarrassing and confusing. If I do a photo-shoot people desperately want to change me – dye my hair blonder, pluck my eyebrows, give me a fringe. Then there’s the choice of clothes. I know everyone wants a picture of me in a mini-skirt. But that’s not me. I feel uncomfortable. I’d never go out in a mini-skirt. It’s nothing to do with protecting the Hermione image. I wouldn’t do that.

‘Personally, I don’t actually think it’s even that sexy. What’s sexy about saying, “I’m here with my boobs out and a short skirt… have a look at everything I’ve got”? My idea of sexy is that less is more. The less you reveal the more people can wonder.’

It’s not what the shabby-chic walls of the discreet private rooms in Groucho, London’s most notorious members’ club, are used to hearing or seeing. This is the adoptive home of the hippest bad girls – Sienna Miller, Kirsten Dunst and Lily Allen. Watson – emphatically a ‘nice girl’ – wears a neat, classic uniform: well-cut jeans, smart boots, pale cashmere V-neck top. She smells shower-fresh, with faint traces of perfume. Her face is pink from a flush of embarrassment – she struggled  to find the room – and her skin is entirely free of make-up or tell-tale signs of heavy nights.

This obviously suits her principal employers well. She has grown up – as if it needs saying – on celluloid in JK Rowling’s all-consuming Harry Potter phenomenon as Harry’s closest, cleverest, bravest female friend, Hermione Granger. Part six of the Warner Bros series, Harry Potter And The Half-Blood Prince, will be released this July and the final two-part installment, Harry Potter And The Deathly Hallows, is filming now.

I’m not tempted by parties or drugs. I don’t actually like being drunk

The films are a financial juggernaut. The first four are among the top 25 highest-grossing movies of all time; the most recent, Harry Potter And The Order Of The Phoenix, was the second-highest grossing of the series, taking just under $1 billion worldwide. Watson’s share of the spoils has her sharing 55th place on the Under-Thirties Rich List with Amy Winehouse – and in the pantheon of our brightest Bafta stars. 

She’s still deciding whether to take up a university place at Oxbridge or an Ivy League college, but she’s adamant it won’t interfere with her acting career. ‘Jodie Foster did it, Natalie Portman did it,’ she says. ‘I think it’s entirely possible to juggle university with filming.’

When she talks she is completely devoid of the jaded cynicism of most of her age group. She hasn’t cultivated an attitude or an accent and, bar one solitary F-word, does not swear. All in all, she is sweet, charming and focused. As she says herself, ‘I think a good phrase to describe me is ‘eager to please’. It’s something I share with Hermione. We’re both terribly earnest people.

‘I wasn’t one of those girls who always dreamed of being an actress. I went to a normal school and then these film auditioners turned up when I was nine. Then I just fell into this whirlwind. I had lots of times when I thought: “Woah, woah, hang on – I’m not completely sure about this.”

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Source: USA Today