Unfortunately, Proyas and his battalion of screenwriters had to come up with answers and once they do, it’s all downhill (toward the apocalypse) from there with plot elements borrowed from George Pal’s 1951 science-fiction film, When Worlds Collide, Stephen Spielberg’s 1977 science fiction classic, Close Encounters of the Third Kind, and Mimi Leder’s Deep Impact (a.k.a. the Other Asteroid Movie).