Film noir traditions include hardboiled detectives, dangerous women, and a necessary plot device. “Guns, dames, and hats” are hallmarks of these somber period pieces, reminiscent of westerns and musicals from Hollywood’s past. There have been attempts to revive the style in films like L.A. Confidential, Sin City, and even the original Blade Runner, which used it to imagine a future—a detail largely absent from the re…