The evolution of the name of this picture is a bit unusual. Our working title was "Day 2" and that came from Montserrat Mendez saying "Day 1; aliens take over the earth, Day 2; we take it back." That logline really stuck (and we have to thank Mozz for that.)
But then the Battle: LA movie came out and, well, clearly our movie is "Battle: NY". But I think "Battle: NY, Day 2" is even more amusing.