Go Further is a ocumentary film by Ron Mann starring Woody Harrelson and a group of others riding around in a large, bio-fueled bus, preaching the negatives of artificial meat, among other things. The film debuted at the Toronto International Film Festival in 2003, where it was first runner-up for the People's Choice Award. It was also nominated for a Genie Award for Best Documentary. The film features cameos of Dave Matthews, Natalie Merchant, Ken Kesey, Bob Weir (of the Grateful Dead), Michael Franti (of Spearhead), Anthony Kiedis (of Red Hot Chili Peppers), Rob Heydon, Medeski Martin & Wood, and The String Cheese Incident.