I exercise every morning. I do light weights - 5lb and 10lb arm exercises - and then lie and lift my arms and legs. It's all about keeping core strength. I do a lot of stretching too.

I went to a military school between the ages of six and 12 and later into the air force. You learn discipline and strength of character.

You have to get along with people, but you also have to recognize that the strength of a team is different people with different perspectives and different personalities.

Then when I went to Iraq and saw the strength and character the men and women in our military service exhibit every day and their belief in what they're doing, I knew I wanted to get that on film and share it with everyone. They are my inspiration.

My faith isn't very churchy, it's a pretty personal, intimate thing and has been a huge source of strength in moments of life and death.