Alright, I know this is a good rule to live by in general but ... if you don't want spoilers for superman - don't read the damned reviews. Particularly not the Wired review in which Jason Silverman sees fit to tell us about the climactic scenes.
[Placeholder for paragraph one of obscenity about reviewers in general]
[Placeholder for paragraph two of obscenity returning to Silverman and the particulars about how he should die]
Dickheads the lot of them....