When working abroad you work pretty hard, but with time off, this is the greatest job in the world. You drive. You explore Memphis, or wherever you've landed, or go and see Dr John, or the Californian landscape. And, yes, I've had a few good meals.

One key element to Hitchcock is the drooping jowl. That was crucial because his silhouette is crucial. There is something about his silhouette that became his brand.

We're interested by public personas and private personas, otherwise we wouldn't put on with actors rambling on with the same kind of stuff, over and over again, saying variations of the same thing. I'm always amazed by how fascinated people still are by actors because it's the same version of events that actors describe, all the time.

Jennifer [Lawrence] is amazingly grounded in the midst of all this to do. It must be unnerving and hard to relate to the amount of attention she generates.

You come in as this satellite part of the film [Catching Fire], so I only see Stanley [Tucci] in my scenes. These kinds of movies have so many different components; it's about as different from doing The Girl as you could imagine.

The thing about Hitchcock which is quite extraordinary for a director of that time, he had a very strong sense of his own image and publicizing himself. Just a very strong sense of himself as the character of Hitchcock.

When I told people I was going to be doing the movie and the voice of Dobby, they were kind of awestruck, the people who knew about Harry Potter. I felt rather guilty that I didn't really understand the scale of the job I was about to take on. Now, I am well aware of what I'm doing, and actually, it feels a very serious acting responsibility.