I’d been auditioning for parts for years, I never got any better at it. I’m crap at auditions.

Jamie Foley - he's a very different energy to [director] Sam [Taylor-Johnson]. The whole experience was actually quite different.

You want roles that challenge you and that scare you a little and where you can really discover something, even about yourself, that maybe you didn't understand.

It's not like I cleaned up with girls. I always looked young and I was very small; I hated being 'cute.'

I know because the movie's made a lot of money, everyone's relaxed a bit so there wasn't that pressure to set the tone for the movies [Fifty Shades of Grey] so I felt a little more freedom this time and it probably made it more enjoyable.

That tag - underwear model - I just can't get rid of it. And it's such a bizarre, specific thing - underwear. It's like I never modelled clothes.

I’m not saying we had a playroom, but I’m not shocked by the sex in the book. It’s essential to tell the story. I can’t believe films that don’t invoke a sexual side of it. So it works for me.