Richard [Griffiths] was by my side during two of the most important moments of my career. In August 2000, before official production had even begun on Potter, we filmed a shot outside the Dursleys', which was my first ever shot as Harry. I was nervous and he made me feel at ease. Seven years later, we embarked on 'Equus' together. It was my first time doing a play but, terrified as I was, his encouragement, tutelage and humor made it a joy. In fact, any room he walked into was made twice as funny and twice as clever just by his presence.

I basically have the diet of a 19th-century Irish navy, apart from the litre of stout a day. It's meat and potatoes and bread and cheese: those are my four food groups.

I always saw Michael Gambon wearing madly psychedelic socks, and I always thought that's it is one of the few areas where men can really express colour and have a bit of a dandyish quality to their outfit.

I met Elijah Wood once, I met Peter Jackson, I met Orlando Bloom, and they're all really cool.

I would say I was challenging the system quite. But I like to think that if the choices I make are slightly unexpected or challenging to people, then that is good. We are definitely three fairly like-minded people in terms of what we value in scripts and in storytelling.

You never want to be forced to do something. But the world around you starts to influence you in ways you never expected.

Every day the Daniels [Kwan and Scheinert] would come up with some amazing solution and [make it easy] to put yourself in their hands. There's something really lovely about knowing you're working with directors who know exactly what they want and exactly what they're looking for, and they're not going to move on until they have it. That, as an actor, frees you up a lot because you can [try different approaches] and they'll only use what's appropriate.