All of these red carpet events may seem natural for you journalists, but it doesn't feel natural for actors.

Best ever was filming in Barcelona last year, and I had a couple of scenes with De Niro. He's a very shy man. Speaks so quietly that people tend to bend down and adopt the same tone, almost the same voice, whenever they talk to him - watching, you'd think someone's offering to carry out a hit for him when they're just offering him a cup of coffee.

I'd love most of the movies I make to be four hours long.

There are far more good actors than there are jobs for them, so it's a big question of luck.

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.

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.

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.