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 think you've really got to cling to what makes sense to you. Obviously, I'm not a serial murderer in my real life, so that's where you have to delve into and do all the research. But, you have to find something likable in the character.

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.

I can't really do the running on hard ground that I used to do. Instead I go swimming as often as possible.

I don't like my physique. Who does? I was a skinny guy growing up, and I still feel like that same skinny kid.

I think you only watch stuff you've done once because I don't think it's that beneficial to you. I think it's important to sometimes be like, 'What's that thing I'm doing with my face? I didn't think I was doing that.'

Because I used to play a lot of sport, I've always been in decent enough shape. When I used to get asked to do a bit of body work before a photo shoot I'd lie and say, 'Yeah, I'm going to the gym.' I literally never did anything.