A Flagstaff local heads "Into the Wild" TweetShareGoogle+Email Actor Emile Hirsch in a scene from the movie \"Into the Wild\" shot in the Grand Canyon. By Gillian Ferris Kohl Listen Listening... / Flagstaff, AZ – Brian Dierker was discovered by Hollywood while doing his normal, everyday job. It's something many of us dream about, but it REALLY happened to this Grand Canyon river guide. Arizona Public Radio's Gillian Ferris Kohl reports. TweetShareGoogle+EmailView the discussion thread.