When I did Casual, I just let myself put on weight because he's a schoolteacher. He's not meant to be muscle-y.

I had done a little bit one other time. This character [in Jack Reacher] is a psychopath, but I had been hired by Carlton Cuse and Randall Wallace.

Psychopaths don't have that charming skill set. They definitely manipulate, but they do it through focused, unskilled means. They're more obsessive.

Sociopaths are more complicated psychopaths; the difference between a sociopath and a psychopath is a sociopath is incredibly charming. There are a lot of sociopaths that are CEOs. They don't necessarily kill people but they're able to walk into a big social function and make everybody think they're the kindest, coolest, smartest, most interesting person in the room.

I had heard that Tom [Cruise] was the same way, that he is incredibly dedicated. I was very excited to meet him and I was, honest to God, weirdly surprised that the guy makes me look lazy. I think he does think I'm a hard worker, but he makes me look like I'm doing nothing. The guy is at the gym before anybody in the morning.

It's pretty tough on your loved ones to try to get back into a rhythm, especially when all you want to do is do nothing.

You're working so hard and so many hours, you simply don't get to visit with everybody when you're gone for five months. That's part of the trade in we make with this career. You don't get to maintain the intimacy you would like to.One of the big things I was doing was working on reestablishing that.