War of the Worlds was an obvious and devastating response to the carnage of 9/11, updating the classic novel to a modern-day depiction of a society coming undone in the face of an apocalyptic alien invasion.

It's an invigorating chase thriller, but where Spielberg once seemed to be leading the culture, he's now following decades of lore and mythology.

That's the premise of Disclosure Day, a new sci-fi thriller that sees Spielberg returning to the idea of these little green men he adores so much. This time however, the little green men in question are actually grey,