Cue the flashback to Jonathan, reassuring a terrified child: "What you are is never as important as who you are." Cue Superman's response to Brainiac: "I already know who I am."*John Williams fanfare plays*
I don't think we even really need to see Krypton. I'd start with Clark growing up in Kansas, thinking he's normal, and follow him through the development of his powers. There've been enough alternate takes on Krypton that it could actually work as a mystery; is this the pre-Crisis utopia, the sterile science world, or the relic of a fallen empire? Brainiac was there, and he tempts Clark with the knowledge of what he really is.
First, a Krypton film, ending with baby Kal-El being found on Earth. Then Supe's early career film, establishing his values... and if Jonothan Kent needs to die, it happens because of something like a heart attack while Clark is savnig folks on the other side of the world. After we know Clark minimizes property damage and never kills, have Zod & Company show up and force him to make tough choices.
Man of Steel seems like someone came up with a Superman trilogy and then the execs said "We've got to catch up to Marvel, make it one film!". I don't mean that based on the film's actual pacing, but because various story beats make more sense to me if they weren't all squished together.
I've been wanting to write a Superman movie trilogy for years; "Man of Steel" (featuring a Terminator-like Brainiac) was going to be first, with "Last Son of Krypton" (featuring the Eradicator) as the sequel and "Man of Tomorrow" (in which Luthor makes his face-heel turn) as the conclusion. Thanks to Snyder I have to re-arrange my titles.
You know you're in for a good time when an old anime starts with a crime lord uses roller skates in his cybernetic legs to skate down the side of the building, launches to a dock and into a getaway boat.
Actually, I think you could make a reasonable argument for saying driving with glasses is dangerous. That is, more dangerous than driving with contacts or perfect vision. You have poor peripheral vision with glasses.