So much of the talk around Hollywood right now is about Disclosure Day. The big-budget sci-fi thriller sees a cybersecurity expert become a whistleblower who reveals secrets to the world about aliens.

Steven Spielberg might be best known for "Jaws" and "Jurassic Park", but it's aliens where Spielberg seems to keep returning. Despite a huge roster of movies, "E.T". and "Close Encounters of the Third ...