Courtesy of TIFFTORONTO, Canada—We’re in an era of revisionist historical dramas that care more about imagining the past as it should have been than as it was, and thus The Peasants resounds as a bracing corrective. An amazingly evocative and illuminating period piece that’s fixated on the details and dynamics that govern life in a small 19th-century Polish village, wife-and-husband writers/directors DK and Hugh Welchman’s film (premiering at this year’s Toronto International Film Festival) empl