CHICAGO — The new Cate Blanchett film “Tár” is no issue movie. It has, however, brought a lot of rarified and/or unfashionable issues back into the spotlight: symphony orchestra politics; the cost of obsessive artistic ambition and devotion to a calling; and, for writer-director Todd Field, the challenge and allure of creating a screen character testing our sympathies one minute, inspiring greatness the next. “Tár” also simmers with topics of right there pertinence: #MeToo, for one, and for another, that suspiciously easy phrase “cancel culture” (or simply “canceled,” as a verb used against a …
