J.B. Benna on filming Unbreakable

Ever thought you might be able to run with the worlds fastest ultra-runners in a 100 mile foot race? Well try running it with a camera strapped to your back and looking through the lens. Filmmaker and ultra-runner J.B. Benna takes us behind the scenes of the rugged Sierra Nevada Mountains, home of the Western States 100 and the epic race of 2010 that stretched from Squaw Valley to Auburn California.