Emma appeared slightly bigger in the cleavage area compared to just a year ago, and also looked fuller in the face.

But the former Harry Potter star chose the perfect outfit to show off her new curves, with the sweetheart neckline and open back proving incredibly flattering on the pretty young star.

Emma teamed her dress with a slicked back crop and lashings of red lipstick.

Perhaps Emma was taking tips from the ultimate poster girl for curvy women, Marilyn Monroe, after recently starring in critically-acclaimed movie My Week With Marilyn.

She admitted in a previous interview that she hates the pressure on young stars to look a certain way, explaining: ‘I do worry about the expectation to look a certain way.

‘I find LA quite scary because of that all those young people having plastic surgery. But the thing is, I don’t want to look like everyone else.

‘I don’t have perfect teeth, I’m not stick thin. I want to be the person who feels great in her body and can say that she loves it and doesn’t want to change anything.

‘It’s ridiculous that seems such an unrealistic goal. I think the actresses who are really successful are the ones who are comfortable in their own skins and still look human.’

And despite her commitments at school, Emma said she is hoping to still have time to work on her acting career.

She said: ‘I’m studying and really excited about my next projects.

‘I can’t really talk about them right now, but I am going to try and fit in some film projects next year in between school.’

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