A scene from The Rise and Fall of the Brown Buffalo . Photo by Michael Sedano     by Abel M. Salas Filmmaker Phillip Rodriguez still can’t take his eyes off the metropolis he calls home. If anything, his gaze has intensified, zeroing in on the untold paradigms of racial divide and the dynamics of difference that have long beleaguered Los Angeles, a city not yet completely comfortable with its Mexican soul. In the 14 years since the broadcast of Los Angeles Now —one of his earliest documentaries for PBS—an examination of the demographic shifts that signaled the “browning of America,” the now grey-bearded Angeleno has mined contemporary issues of race, identity and cultural diversity with increasing depth and intuitive foresight. This even as his lens, calibrated by an acute, erudite and humanist Latino perspective, has been artfully rotated toward the past. His recent focus on subjects culled from the period of social turmoil and political unrest that erupte...