By Justin Marble April 4–5, Kurosawa at the Brattle: Every theater in town is screening Kurosawa at some point this month, but my recommendation is for the Brattle on the 4th and 5th for one reason: “Red Beard.” Most everybody has at least heard of Kurosawa films like “Yojimbo,” “Throne of Blood,” “Kagemusha,” and “Ran,”…