British actress Georgia King’s first feature film was 2008’s Wild Child, where she starred opposite Emma Roberts as head girl Harriet. After appearances in Little Dorritt and The Duchess she played the vapid Sophie in teen slasher flick Tormented. Here she speaks with View London’s Matthew Turner about the perils of Twitter, interviewing for DVD extras in toilet cubicles and separating herself from her shallow Tormented character.

I see you're a recent convert to Twitter. How did that happen?
Georgia King (GK): I had absolutely no idea what it was. And I actually like the old-school Judi Dench-types who believe their private lives are their own and keep them to themselves and I feel like it's getting a bit too like, celebrities, let's know every detail about everyone and it's kind of all sort of mashing into one. So I actually didn't want to be a part of Twitter, was going to go off Facebook, you know, the whole works – I was going to start a revolution, with no followers (laughs). But Jon Wright, the director of Tormented said, “It's really important you go on it, because it's just the way things are nowadays.” And actually, doing Tormented and doing all the press and doing all the DVD extras, with the flip-video cameras and things, it really is about that – people are really interested to know what the person is like.

And I actually wanted to differentiate myself from the characters that I've been playing, because I think people can look at you and go, “Oh, you're a real mean cow,” or “You must be so gentle and soft because you only ever do period dramas” – someone said that about me, which is very, very far from true. So I went on Twitter, but I literally only just discovered the replies button the other day and there were all these messages I hadn't responded to! But it's important, because I think the positive side of the public is a very good side to hold on to, because obviously, the negative is huge, to everyone, not just me. So I am slightly, reluctantly, converted.

You are all over the Tormented DVD extras. How was it doing all the behind-the-scenes stuff?
GK: I love doing behind-the-scenes. I have no qualms about appearing in front of a camera, it's just watching the end product! They gave us so much stuff – I was immediately so impressed, on the set, when they came in and told us about all the extras. They rigged up a fake toilet cubicle and I think a couple of people were like, “No, I will not go in there, it's too personal,” but I loved the place (laughs). It's brilliant! It's an interview, but I get to choose the questions, which is amazing and also a real privilege. It's lovely to have people invest their time and energy in very inventive ways of getting extras from us.

And then, the flip-video cameras, when we're in character, which a lot of people didn't get on YouTube, originally. So they were watching me going, like, “Oh, I hate this girl, she's so vain, she's so shallow” and I was kind of tempted to write back under some fake name like George, George Kingdom and reply, saying, “It's not really Georgia King!” But I think people have cottoned on now, which is great. But yes, the behind-the-scenes stuff was great, we had Alex Tanner, who directed all the extras, he got so much footage and it's a shame he couldn't put more on the DVD, because he had some cracking stuff.

What's the reaction to the film been like? Have you been recognised from it?
GK: I have been. I actually had my hair dyed very dark brown for a role, which made me look so different that no one recognised me, although someone actually hit me on the head as they ran past and went, “You're from Wild Child!” (laughs) and just kept running and I was like, “Yeah! Bye, buddy!” It was a very weird moment, the other day. But now I'm back to blonde, people do give me little comments here and there.

With Tormented, I think for those that got it – because it's actually very, very clever and very funny – they loved it. It's amazing – if you understand what it's saying and what it's doing, it's brilliant. It's not meant to be the scariest thing you've ever seen – I think a few people were under the impression that it was just a horror film and it's a slasher horror, it's a comedy horror. And I'd like to think it's very unique – the cast and the look and the feel of it are unlike a lot of horror films that are made.

And I think they took bold choices with their casting that paid off, like with Tuppence [Middleton], who'd never made a film before. And also, I'm not the skinniest girl and I have that scene in my knickers and I've definitely got hips and a bum, I think we all learned that, watching that film (laughs). And, FYI, the camera adds at least 25 pounds, to me personally. So I'm definitely aware of not being skinny, but that's great, I think that's really important, again, that people aren't just looking for one type of girl, which is tiny, petite, very thin. I'm hoping that more normal women are being accepted in the film industry, which I think they are. And curves are good! Guys like curves! They are under-rated in the film industry. I think film stars have always looked after themselves and been very thin, but I think as a generation we're much bigger now, so the contrast between those size zero actors-slash-models and normal people is that much more extreme. And I'm not saying be obese, but I do think being healthy should be the priority.

What else have you got coming up?
GK: I'm in St Trinian's 2, briefly, I just did a small role in that. And then I've got Tanner Hall, which I was downloading my lesbian bath scene from, for my showreel the other day – it's actually one of my best scenes! Also, weirdly, I was in Wild Child, but I just auditioned for another film called Wild Child too. Very strange.

But Tanner Hall was my first American film, the first audition I did when I got to L.A. It's about four girls at a very old, run-down boarding school in New England and everything's very still and beautiful. And these girls are at that weird, big gear-change in their teenage years, so one's having an affair with another man, another's not sure about her sexuality and is terrified about it and the other one is so sure of her sexuality that she abuses it. And then my character, Victoria, is the new girl who goes in and destroys them all! But it's quite cool – it's got a kind of Virgin Suicides, dream-like quality to it. And it's directed by two women and if you knew them, it is absolutely a product of these two women – they're the most dream-like, ethereal creatures and I've never met two people like them.