Rowan Joffe was on top of everything. He knew exactly how he wanted everything to be, right down to the fact when I made those telephone calls, I didn't do it afterwards in a studio. I think that's how he operates. He likes it to be as real and as clear as possible.

I had this extraordinarily bizarre moment when, two Fridays ago, my missus gave birth to our second child at 11am and by the same time the following day I was sitting around a table with Ridley Scott, Russell Crowe and Leonardo DiCaprio in Rabat in Morocco, rehearsing a scene we were going to shoot the next day.

I have an enormous amount of respect for Nicole Kidman. She's just done so many great movies and she's been out there at the forefront of carrying films and being a movie star. On set, it really pays dividends because when you're performing with her, she knows exactly how to play it. You don't have to compensate for her in any way.

In the past, if I didn't work, I didn't eat but now I feel I can not work and I won't starve.

I got sent the script [ Before I Go To Sleep] as usually happens and you have a little look. I know it's a bit of a cliché, but it was absolutely a page turner. I mean, I wanted to find out what happened next.

I think it serves the purpose of the film if the premise is that you're unsure of me because you've only ever really seen me play villains.

You sign for a sequel for everything these days, just in case, options. In the past, you avoided them like the plague because it meant somewhere down the road you couldn't take a job because you had to do a sequel. Now it's a feature of pretty much any feature you do.

I've put my friends and family through the wringer over the years, I have to say, by doing unspeakable things to people, not the least of which was pulling out poor George Clooney's fingernails in Syriana.

The Secret Service I'm really excited about because Matthew Vaughn directed it. I've done a couple of movies with him - Stardust, which is one of my favorite films, and Kick-Ass, which is just a crazy, wonderful movie.

Part of me was fascinated by the idea that I would only get next week's episode a week in advance and wouldn't actually know where I was going with it, until the script landed on my mat. But, part of me wanted to know what was going to happen.

When you're making a psychological thriller, what you need to do is have an audience on shifting sand so they're never quite sure where they are.

The Peugeot is a very unthreatening car.

In the movie, you have to decide as an actor how you are going to give a character presence. You can't really move, walk, and talk like yourself. This creates something so you have to find something other.

I'm sure part of the baggage that I bring having played a lot of villains is also pertinent to the movie [Before I Go To Sleep], because I'm sure people look at me and think, Oh, I'm not sure I trust him or not.

I'm very organized and tidy in my home life and I generally do something myself rather than farm it out to somebody else. I don't have an assistant or anything because I think I can do it myself.

Interestingly, this character [Doctor Nash] is probably closer to me than somebody like the evil Sir Godfrey in Robin Hood or Lord Blackwood who wants to take over the world in Sherlock Holmes. This is a character that's English, he's based in London, and so it's closer to me than a lot of stuff I've been doing recently.

All these portrayals we see of knights fighting must be absolute rubbish because knights in armour could literally have only had two or three blows and then they'd have had to sit down to have a cup of tea.

[Before I Go To Sleep] script was a great journey with all the twists and turns that were kind of unexpected. I had to finish the script, and I thought if we can emulate this in the film, it's going to be a really good film.