1st rule of an action movie and storytelling:
Action needs to escalate.
If we show Superman in the first 5 min and slow it down a lot in the middle, people won't care about the rest of it.
Pre-rule to that 'first rule', you don't put your BEST action stuff up front,and that's not what I'm suggesting. Tease them, establish the feel of what's to come...then start moving around with the perspective. And they will care if you don't make it feel like you're 'slowing down'....especially if you do teh earlier stuff later or in a second film, after you've hooked everyone in with the first. It's not slowing down, it's introducing more pieces into the picture from different angles.
Besides, in my script, i don't want to return to Smallville after i've finished with it in the first 20 mins. We can see Superman in full glory for the rest of the movie.
However, we can show glimpes of the powers and all.
Did Iron Man appear in the first 5 mins?
Didn't think so...
Are you willing or able to try something different than how Iron Man or Spider Man etc did it....which, in turn, is how the Superman of old did it?
Wouldn't you like to take a more creative approach to how the story is told than what's been done?
Didn't think so, either.
That didn't make people leave the theaters.
They didn't back in 1989 with Batman, either, and that started with Batman as.....Batman.
But again, you're thinking too conventionally and two-dimensionally, and Superman in particular needs more out-of-the-box thinking and composing. he also has to overcome an existing familiarity that other characters like Iron Man don't have, even if one's not attached to the Donner movies. Part of the fun of taking an original approach is playing off that and giving people a take that they aren't expecting, so they enjoy experiencing how it unfolds.
If you really are an aspiring writer, then you should be able to grasp that and be willing to incorporate it if you want something to stand out. And more importantly, recognize when it's most useful...which I feel is clearly the case with a Superman movie/story. Unless you haven't gotten to that point yet, and if that's the case, then hopefully it'll develop. Film, more than any other medium, allows you to rearrange time within a storyline and challenge the audience...not necessarily in a 'we're looking to mess with you' kind of way...but in a more 3-dimensional way that takes full advantage of the format. A Superman movie could do well to push that envelope....not saying it's doomed if it doesn't....but the upside is so strong that it should at least be strongly considered. If it works, people will appreciate the uniqueness of the approach on top of enjoying the superhero-ness of it and what not. So I think it's time to put away the safety blanket, in this case.