Gus Van Sant’s biopic of gay activist Harvey Milk, who was assassinated in 1978, captures the casual sex and political ? engagement of pre-AIDS San Francisco. Oscar winner Penn is charismatic and loose (he never looks like he’s acting), and Brolin matches him scene for scene as the tightly wound pol who detests being in Milk’s shadow. EXTRAS include a stirring featurette about Milk’s legacy told by those who knew him. A?