[Director Peter] Berg himself has said that the film is a contemporary story of an international five-ship fleet engaged in a very dynamic, violent and intense battle, BUT he didn't say anything or give any details about the enemy.
THAT WAS TILL NOW.
A source has confirmed with me that the enemies will be ALIENS!
Of course. I always knew man alone didn't possess the microtechnology necessary to construct a ship only two pegs long.
Guess Who Is Trying To Sink Your Battleship [Latino Review]