Watched Battleship. It was actually a very fun movie. I got the sense watching the trailer and think it more after seeing the movie, that some suits decided to have this done, and when it was turned over to the writers they were like "Really? you want to make a movie about what?" but then said "screw it" and just decided to have fun with the idea. Some of the navel battles were pretty unique and over all the action was good. mostly it's all tongue in cheek.
The one interesting thing is that, though they don't get into the motivations of the aliens further then they are a scouting party and want to send off a signal to bring more of them here, how they are portrayed is a bit more in depth then the usual invading fair. They aren't shown to be merciless killers, and only destroy or kill for tactical reasons or if they are attacked. on several occasions they simply let people go because they aren't a threat. I thought it was a nice touch, and surprised it was there at all.
"The reason an author needs to know the rules of grammar isn't so he or she never breaks them, but so the author knows how to break them."