I didnt see the Movie so i dont realy know whats going on there lol, but i would help fight the war with my powers (on the good side of course!) and try to return home (Earth ;)) after the war is over and no help is needed to protect them (Martians). would be cool to keep my powers :)
@zackattack529: I started reading Amazing Spiderman from Ends of the Earth which was 5 issues ago and didnt need any back reading to do,some things get explained again anyway. So i think you can, i dont see any problem.