Fields of Fuel Online

Laurie Lennard - Self - Stopglobalwarming.org (as Laurie David) , Joshua Tickell - Self / narrator, Larry David - Self - Actor / Comedian / Environmentalist, Larry Hagman - Self - Actor / Renewable Energy Advocate, Woody Harrelson - Self - Actor / Environmentalist, Jack Johnson - Self - Musician / Environmentalist, Willie Nelson - Self - Musician / Farm Aid Co-Founder, Julia Roberts - Self - Actress / Spokesperson & Chairwoman of School Bus America, Neil Young - Self - Musician / Farm Aid Co-Founder, Richard Branson - Self - Founder of Virgin (as Sir Richard Branson) , Gal Luft - Self - Executive Director of Institute for the Analysis of Global Security (as Dr. Gal Luft) , Colin Campbell - Self - Oil Geologist / Author (as Dr. Colin Campbell) , Herman Franssen - Self - President of International Energy Associates (as Dr. Hermann Frassen) , Matthew Simmons - Self - Former Advisor to President Bush, Bill Shepard - Self - Author / Professor of Electrical Engineering & Renewal Energy (as Dr. Bill Shepard)