Emily Blunt and Josh O'Connor excel in this drama about humanity's place in the universe that buries its heavier ideas under well-orchestrated thrills

Steven Spielberg's Disclosure Day is a new sci-fi blockbuster about an alien conspiracy.

Set in the present-ish day, it opens with cybersecurity whistleblower Daniel Kellner (Josh O’Connor) having stolen the world’s greatest secret from his spooky men-in-black employers in a bid to expose...