Be really picky with your hiring, and hire the absolute best people you possibly can. People are the most important component of almost every business, and attracting the best talent possible is going to make a huge difference.

I'm much more collaborative than I probably was when I was first starting, much more willing to say, "I don't know the answer to that." I have really talented people and let them do their jobs and not try to control everything as much as I did when I was starting. I was a bit more insecure.

I was in New York 9/11. Mark's [Wahlberg] from Boston, flew there immediately after. I was in Nice Bastille Day when the truck drove through and killed all these people. It's the new reality, unfortunately. The idea of trying to explore how we process this kind of event, how we survive emotionally, what we tell our kids: That was the movie [Patriots Day] we wanted to make.

I somewhere along the way became fascinated with exploring characters who are willing to put themselves into violent situations, whether it's football, hockey, boxing, being a cop, being a soldier. There's not a lot of people who are willing to put themselves into those situations.

I try to preload as little as I can. I like to come to the set with minimal preparation.

I had great luck with Tim McGraw twice in 'Friday Night Lights' and 'The Kingdom.' I love finding off-beat casting and finding someone you know in one way and you reinvent them in another way. I like doing that as a director.

Working with composers often is a really frustrating experience because you speak a different language and, oftentimes, they take two or three jobs, at the same time. They're difficult and pretentious and they're tormented artists.