Since Superman has a LOOOONG history of killing Zod, it was hardly a mistake. If you don't like the movie, focus on something you do like.

Dude, you're totally gay.

Gee, what was your first hint?

It bugs me that people treat this like a list of features that they must tick off to not have anyone whine. If I were to write a story about a bunch a dudes going on a roadtrip, it'd be a story about a bunch of dudes going on a roadtrip; there aren't any females in my story because it's about a bunch of dudes going on…

I dunno, I think making Dick Grayson Batman was the smartest thing they've done with Batman in a long time. But they had to go and put a stop to that too.