The Mission's an interesting place to screen a movie about gentrification, filmed from the eyes of the gentrifier -- so there was certainly no shortage of things to think about at last night's showing of New Urban Cowboy for DocFest at the Roxie. New Urban Cowboy is a documentary about Michael Arth, a kind of hippie-dippie former resident of Santa Barbara who moves to the small town of Deland, Florida, near Orlando, and more......