Emily Blunt stars in Steven Spielberg’s film Disclosure Day, which imagines how humanity might react to confirmation of alien life. | Courtesy of Amblin Entertainment With his new film Disclosure Day, filmmaker Steven Spielberg is returning to the subject that helped make him one of the most successful directors in the world: extraterrestrials (or ETs).  But his movie also focuses on a second topic that has long preoccupied Spielberg and other sci-fi directors: faith. It’s a story about believ