Zack Snyder says General Zod will not be in his film.
"It's a different story. I won't say there's a break from the canon or anything like that, but there is definitely an approach that makes you go, 'Okay, that's a way to get at it.' [David Goyer] is very respectful of the canon and stuff like that. It has its roots in the canon and again, like I say, it has a point of view about who he is. I'm being cryptic, I know, but it's the best I can do."
On specifically of Zod's involvement:
"Just wrong! The internet has no idea what's going on."
I gotta tell you... when I read Snyder saying "wrong!", it reminded me of Lex Luthor screaming "Wrong!" in Superman Returns.
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