They’re exploding postcards. When Independence Day premiered in 1996, it introduced something huge: blowing a bunch of well-known landmarks the heck up. Turns out audiences loved it, setting off a digital arms race, with movies competing to see which could be the most destructive, with CGI asteroids, robot worms or brawling superheroes blasting Paris, London or New York to bits. Director Roland Emmerich is upping the ante with his newly released Independence Day: Resurgence. Its attacking spaceships are ocean-sized, but the scale may eclipse fans’ imagination, leaving nowhere to go from here.