Evil? Or the Victim of Pernicious Framing?

Over at FilmCritic.com I do a mind experiment and point out that some of the most famous “bad guys” in science fiction film — the aliens of the Alien film series, as an example — aren’t necessarily evil, and indeed are doing things that are in fact totally understandable, if you look at it from their perspective. I give three (actually, four) examples for you to consider. Check them out, and as always feel free to leave your thoughts and comments in the thread over there.