IF I WASN’T AN ACTRESS I’D BE… a photographer. I’m doing a course at the University of the Arts, London. But it’s an absolute skive – you don’t actually have to be there very much. Acting can be precarious so I want to have a back-up. I genuinely have no clue what I’ll be up to in a few years’ time.

I WAS COMPLETELY STARSTRUCK WHEN… I met J K Rowling for the first time at one of the Harry Potter premieres. They are brilliant occasions; people are shouting your name and you always get pampered and put up in a great hotel.

MY NEXT BIG PROJECT IS… finding a boyfriend. I don’t have one at the moment but I want one. Because of Harry Potter everyone seems to assume I’m 16, which I don’t think really works in my favour. Friends are always asking me why I haven’t met someone during filming, but being in Harry Potter is a bit like being at school. Everyone in the cast is always looking for something to gossip about, which can be fun, as long as it’s not about you.

I HAVE A BIG CRUSH ON… Joaquin Phoenix – he’s amazing. He would be a great leading man. Meeting David Suchet at the start of filming on Poirot was funny because I expected him to talk in a Belgian accent but, of course, he talks in cut-glass English. The way he can switch it on and off is truly incredible.