Cian Geoghegan delves into Steven Spielberg’s personal drama. The new film from Steven Spielberg, inarguably the most populist, mainstream filmmaker in the history of the medium, occupies a bizarre middle-space in the public sphere. Its autobiographical content, sure to be misconstrued as navel-gazing by cynical punters, locks it out from the maximal appeal of the director’s parade of hits. On the other hand, the blistering earnestness of all things Spielberg is out of step with…