I want to make sure everything has my 100%.

I read as many books about the psychology of a psychopath as I could and I researched what exactly happens to soldiers.

I went into very deep research as to what exactly that meant and how sociopaths function psychologically and within the world.

When I look at myself in the mirror, I don't see the bad guy.

The guy [Tom Cruise] is a machine.

[Jack Reacher] is the longest I'd ever shot anything - and let's be clear, this is my first studio feature film - so there was a huge learning curve.

I was eating with the help of a nutritionist so I was definitely putting in the appropriate calories and vitamins and minerals into my body; however, it was still so little that if I had the tiniest piece of sugar, my brain would go crazy. If I had some alcohol during the run of that play, my brain would go crazy.