The Facebook game Battleship: The Battle For Earth Begins At Sea lets you play the classic strategy game with your Facebook fans using new vessels featured in the film.

Like many of these movie games, the goal is to do well enough to move up the leaderboard and gain achievements, which unlock video clips from the upcoming film. The Facebook app also links you to other Battleship games online, including Classic Battleship on Hubworld and Battleship Fleet Game on Hasbro.

As players trade blows and earn victories, they'll collectively unlock special clips from the movie before it debuts May 18. For instance, as of this writing Human players have collectively earned 85 percent of the wins needed to unlock the next clip. Players can challenge random players to games of Battleship too, so they won't be without opponents to crush. It's a branded social game alright, but at least this stays truer to the source material than what's about to assault theaters with Rihanna on the front line.