(Cambridge, MA.– Wednesday, March 3, 2010)– Ilisa Barbash, right, and Lucien Castaing-Taylor and discussed their documentary film ?Sweetgrass,? which chronicles the efforts of a small group of herders to drive their sheep into Montana?s Beartooth Mountains for summer pasture. Barbash is associate curator of visual anthropology at the Peabody Museum, Castaing-Taylor is associate professor of visual and environmental Studies; Joy Foundation Fellow Radcliffe-Harvard Film Study Center Fellow. Staff Photo Rose Lincoln/Harvard News Office