Director James Cameron says:
Imperialism a theme
"So certainly it is about imperialism in the sense that the way human history has always worked is that people with more military or technological might tend to supplant or destroy people who are weaker, usually for their resources," says Cameron. "We're in a century right now in which we're going to start fighting more and more over less and less. The population ain't slowin' down, oil will be depleted - we don't have a great Plan B for energy in this country right now, notwithstanding Obama's attempts to get people to focus on alternative energy. We've had eight years of the oil lobbyists running the country.
"So there's a conscience within the film, but it's not boldly stated. It's kind of there if you want it to be there; it's not there if you don't want it to be there. It can be as classic a story of fighting back against cruel might as 'Star Wars.' You can take it back to the origins of America in a fight of rebels against an imperial dominating force. You can interpret it many, many different ways. The bad guys could be America in this movie, or the good guys could be America in this movie," he says, laughing. "Depending on your perspective."