"My problem is that I am a little bit boring. I don't wear designer bags or big sunglasses," she told the French edition of Elle magazine.

"When I don't have to play Emma Watson in public, I'd rather not put myself 'out there'. I have to be more careful with my look in my everyday life."

"Someone asked me why I accepted [the Lancôme] job, as I wanted to stand in the shadows. Actually, I gave up the idea that I could become anonymous again!" she said. "Before, I used to insist on taking the bus or the underground as a way of rebelling against my fame. But, at one point, you have to give it up. Last year, in Bangladesh, I came across a really poor village, made of dried mud shacks. A little boy dressed in rags asked me, 'Hey, aren't you the girl in Harry Potter?'"

"I would have never lend my image to a brand if I didn't feel in perfect harmony with it! Lancôme embodies everything I like: France, where I was born, quality and stars who I admire for their sincerity and charm, like Julia Roberts or Penélope Cruz," she gushed.

"And, most of all, Lancôme allowed me to work the way I wanted to. I appreciated that a lot."