I read Christopher McDougall's book 'Born to Run.' If running were a religion, this would be its bible. I actually scribbled my favorite passages on my arm to read during the race.
The little song and dance number at the end - that's me, my voice, howling out. It was a new experience for me. I've never sung before and I've certainly never sung on screen. I think I sung on stage when I was 13 and for some reason nobody's asked me to try it again since.

