It's probably the environment I live in. If I get excited about something (whether it be a film, a comic book, etc) people I know would shrug and not care so much. Then again, I'm interested in all things people around me don't really care about. So, for me it's best not to say anything.
The thing with the general audience and films is, if you tell them next year a Superman film will be released, they probably don't care. When they see a trailer on TV or on the internet, they may think; 'Hmm, could be interesting' (or not), and then they go see it and form their final opinion about it after they've seen it. It's all about the marketing strategy that's being used. If that's well done, then the film will do better than when it's done wrong.
For example: John Carter was in general a good and entertaining film (if you ask me, and people I've spoken to, who are not Taylor Kitsch or John Carter fans). The problem why the film didn't do as well as expected is, because Disney came up with a seriously lacking marketing strategy. I don't watch a lot of TV, so a lot of the film trailers don't get to me unless I stumble upon them on the internet. But the 'big bucks' films do reach me. I saw the John Carter trailer ONCE on TV, and that was on the day the film was released. Now if Disney had gotten their marketing strategy right, I would've seen it at least a few times more (on TV, not online). I would've gone anyways, regardless of the amount of advertising, but that's not the case with the general audience. They need to get excited by the amount of advertising, the trailers, and so on. And that's where Disney failed.
So what I think is; if Man Of Steel is properly promoted, people will become excited. If not, people will still say 'meh', no matter how good (or bad) the visual effects, the story, the ass-kicking is...