After hearing Paul Nicklen's talk, I couldn't wait to hear from Bryan Smith, a National Geographic filmmaker.  Lots of great stories about what it takes to get the shot. After hearing about his near-death and the crazy things he'll do to get the shot. It made Susan realize that all my years hanging out of helicopters, drilling rig derricks and stupid things wasn't abnormal.  

Here's a talk he did for Nat Geo.