Emma Watson really understands Hermione Granger the character she plays in Harry Potter The Goblet of Fire, which was released last week.

"It felt like I didn't have to act at times. I know Hermione so well. There's so much of her in me, and me in her." says the Oxford-born actress But there are expectations that go along with it.

"It's a responsibility. So many kids live and breathe the books. They have made an impact on many people's lives and we are aware that they are fond of the characters."

She hopes to move on to take on demanding roles after Harry Potter.

"One of the things that made me want to get into acting was being on a stage in front of a live audience, so I might try something in the theatre next."

She enjoys being a celebrity, but still went into a local book shop to buy the most recent Harry Potter book. Her favourite moment came last year, when she switched on the Christmas lights in Oxford Street.

She says: "I will remember that for the rest of my life."