It's great when improv is encouraged. It's a really fun thing. It depends on who's in the movie and how their process works, as well. It takes a director who is open to that because you have a script, but then something funny could happen on set. So, to have people around you who encourage improv is really exciting.

Snow White has always been one of my favorite fairy tales growing up. To be able to say, "I'm going to be Snow White" - it's crazy. It's an honor.

I think I've been brought up very well by both my parents. I am very cautious and I think I'm now fit for the world I'm in. They're very much behind my modelling and very supportive.

The weirdest moments for me are in Los Angeles when I go to a mall that I've shopped at since I was 12, and now there's like, massive pictures of our faces everywhere, at my local coffee shops now there's these billboards of people wearing the T-shirts and stuff. It's very strange, but it's really exciting.

I’m a huge fan of the books myself, so to know that I got to play Clary – who’s a literary heroine to me – was a huge honour.

I'm a huge fan of the series of books by Cassandra Clare, The Mortal Instruments. I'm a fan myself, so to be cast as the lead heroine is completely incredible.

I'm drawn to roles that have real substance, that aren't just the victim or the teenage girl or the girlfriend.