Once Now You See Me proved that that tone could work, which I'm sure was a nightmare for them in post - is this too serious? Do we have to say that magic really does exist or not? - I can take that and have fun with the tone that they established.

The best thing I've learned is, if you're going out, never go out alone - you leave yourself vulnerable. If you've got someone else there you trust, they can say, be wary of that person. I probably used to be too trusting of people.

My dad grew up in Banbridge, Northern Ireland, desperate to get to London. I grew up in London, so I don't know what it's like to yearn for the big city from a small town.

The happiest I ever am is spending time with a group of really good friends. That's all I aspire to in life, really.

I feel very English in a suit. There's something about being in a suit abroad, particularly in America, that feels empowering.

If you like the book, you'll hate the movie.

I certainly want to establish myself as an actor in my own right, rather than being just the actor who plays Harry Potter.