The Fourth Annual One Earth Film Festival runs from March 6 to 8 and features more than 35 films in 30 venues in and around Chicago. Mike sits down with three of the people behind this self-identified deep roots event--Cassandra West, Gina Robbins and David Holmquist--to discover how they choose the green films that are presented. In the middle of this conversation, Mike talks to filmmaker Marcy Cravat, who directed and produced the stunning and thought-provoking documentary Angel Azul.