Disclosure Day is the long-anticipated new blockbuster by one of the greatest directors of all time, Steven Spielberg, who brought us Jaws, Jurassic Park and Saving Private Ryan. Emily Blunt is tongue-tied in the teaser and trailer, which indicate an otherworldly presence is already here. Will this be classic Spielberg? Or another retread of long-told tropes of UFOs and conspiracies? Let’s see what he means.