Hollywood’s science fiction films, particularly alien movies, can be divided into those before and after director Steven Spielberg, 80 years old. Before Spielberg, aliens were solely objects of fear and caution.

Disclosure Day also involves aliens but uses them conspiratorially, at the edges of the tale.

"I actually walked away from Harry Potter, which I was scheduled to direct as my next movie," added Spielberg, explaining that he had even been a part of casting decisions at that point.