Yeah loads of bruises and welts, usually around the hip, arse, thigh region and elbows. Elbows got knocked up big time, but it was so much fun. I hadn't done a meaty action film in seven or eight years, so it was fun to explore that aspect of storytelling again.

Anything that's different from your own realm of experience as a human being, whether it's driving a car or a boat, or using guns, anything that separates you from yourself and leads you more towards this character's existence is a big help.

I have a piano in my living room that I mess around on a little bit and when I asked Len if I could find a piece of music, I went through a **** load of classical music to find something that I felt had a certain urgency to it, but also with a hint of melancholia and maybe a sense of longing. I found that which is public domain and I had a piano teacher to go through it with me.

Desperation will allow you to do incredible things in the name of survival.

The first time you hold your baby in your arms, I mean, a sense of strength and love washes over you. It washed over me and I never thought that possible.

The idea of implanting memories where by the implantee couldn't tell the difference between a real experience and a fantasy experience was really cool. And his ideas of technology - do we control technology or does technology begin to control us? His work hasn't aged a day it seems.

I think I'm still trying to find my feet as an actor. And I know it ain't brain surgery, but it confuses me and it comes between me and my sleep a lot.