I've done a lot of very low-budget indie films, so it was just really exciting and fun to be doing a film where there's a lot more time and these huge, vast sets. I was like a kid in a playground. It was amazing!

"The Theory of Everything" is an extraordinary story because [Jane Hawing] was incredibly religious and [Stephen Hawking] was an atheist, so you have this conflict both on a domestic level between a couple in a difficult situation but also this bigger conflict of science versus religion, so it's a really fascinating project.

I have a great plain blue shirt from APC, and a denim one from Dolce that I wear constantly. It's hard to find the perfect denim shirt, but this is it.

I always hope for roles that have some depth and that I can get my teeth into and that will challenge me, in some way.

The key is working with great directors. A film is so many different people and all their talents, but particularly the directors, because of the idiosyncrasies of that person.

I like Nelly's [Ternan] quiet inner strength. I thought there was something about her predicament that I found interesting - that she didn't want to be a floozy mistress, a bit on the side, that she had more self-respect than that.

The American vice would be sometimes speaking too loudly. You can always hear American people on the trains!