Pittsburgh provides the magnificent backdrop for these more obscure films, including several prison break thrillers, a smoldering romantic drama, and more. In Alex Garland’s Civil War, a grim movie about journalists traveling through a war-torn U.S., the group drives under a highway overpass spray-painted with graffiti that says “GO STEELERS.” The location isn’t recognizable as Pittsburgh (and I’m omitting a gruesome reveal), but the suggestion of it was enough for the Pittsburgh audience at an advanced screening to clap and cheer. I know because I was among them, hooting and hollering, grateful that Pittsburgh pride remains undefeated…