Before Al Gore's "An Inconvenient Truth" brought the Green movement to the masses, there was a growing modern  environmental movement in America spanning from the post-war 1950's through the famously popular 1970 Earth Day celebration and the political action that followed.

Tomorrow night, August 11, check out this year's Sundance closer, "Earth Days," screening at The Picture House in Pelham, NY. Director Robert Stone will appear at this special preview.