To say Ava DuVernay's "Selma" feels relevant is a mammoth understatement. It's altogether animated, propelled and enlivened by its contemporary urgency. "Selma" is a history lesson that throbs with today.DuVernay, a former publicist with two low-budget dramas to her name, dramatizes the events around the 1965 Civil Rights march through Alabama, from Selma to Montgomery, with a straightness of purpose befitting the famous...