Stanley Kowalski looms so large in our cultural conscience that it’s easy to forget that “A Streetcar Named Desire” is really about Blanche DuBois, his emotionally disturbed sister-in-law. Much of that is due to Marlon Brando’s iconic portrayal of Kowalski in Elia Kazan’s 1951 film adaptation of Tennessee Williams’ landmark drama (he originated the role onstage, too), a performance so captivating and animalistic that it changed the trajectory of modern acting. And yet “Streetcar” is, of course, Blanche’s story; in fact, Stanley disappears for much of the play’s middle section. Watching Spokane Civic Theatre’s current production of the show, it occurred to me that Blanche seems more like a real person than most theatrical characters, because she’s allowed to be so many seemingly contradictory things at once – demure, flamboyant, compassionate, detached, wounded, predatory.