I think the biggest challenge was being aware of a certain audience that was going to see this film [lone survivor]. There's a big difference from a typical movie, journalists and critics and film goers that go see it find that, that's the general experience you have as a filmmaker. So that just kind of proves my point that there's a really different audience.

What first caught my eye about Rihanna was an interview she did with Diane Sawyer after the Chris Brown incident, where she was very articulate, very poised, obviously a smart girl who talked about a very traumatic experience.

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

I've been a big believer in musicians turned actor, going back to Sinatra winning the Oscar for 'From Here To Eternity.' David Bowie in 'Man Who Fell to Earth,' Kris Kristofferson's been great in a bunch of films. Liza Minnelli, Barbra Streisand, Mariah Carey, I thought was great in 'Precious.

Michael Mann's always been one of my heroes.

You look for inspiration, I do, that got me going.

You're in the middle of making a movie and this part of the process is always very interesting. Because you think what you're making your movie is and then you start putting it out there, and then people tell you what your movie is.