There really is nothing lefty about the film.
It fits in perfectly with I and II. I am right wing as they come, and a big comic fan, and nothing offends me politically about this film at all. The writers are expressing some screwy crap about a single line, it means little to me. Superman cannot be made into something he is not by them or anyone else. There is no reason to skip this film over politics as far as I am concerned. It is not a Michael Moore film by any stretch. Lets not get so upset about politics that we cant see any films at all over much ado about nothing.
Superman Returns is a very good film. There was nothing pansy about the last Son of Krypton in this movie.
And certainly nothing left wing about it for crying out loud. I saw it with my two knuckle draggin right wing buds too, we all dug it. And are liberal crap detectors are very sensitive.
Mario Puzo's screenplay still better. He grew up reading the original comics...
I agree in fact alot of conservative values slip into this movie and from hearing about the filmmakers i can only conclude that the gay one might be an in the closet conservative.