As much as I love superhero movies, the fact that they're so tightly focused on Character Whose Name Is The Title is like a brick around the neck. Say we stay interested in Iron Man after he gives up alcohol, works out any lingering problems he will ever have with Pepper, gets over his PTSD, and makes his inherited business ... uh, even more The Biggest Business in the World. Then what? All we're left with is a perfectly well-adjusted dude who also owns a murder suit. Sorry, I don't care about that at all. I want my protagonist to seem, in at least one way, shittier than me, or I'll just get jealous. So why not hold-off on his personal growth for a little while and, instead, make him the catalyst for a bigger, weirder adventure that -- though he's involved -- isn't ultimately about him? That's the point of good world building, right?
This is also the big thing killing the Star Trek movies right now. The first Star Trek was cool; it patiently and effectively got the team together, building up to a final shot where Kirk, Spock, Bones, and The Gang are ready to take on anything that comes at them. But then Star Trek Into Darkness stumbled into the room and, like a drunk idiot interrupting a conversation, forced everything back to square one. Because they didn't know what to do with the characters.
Hey, how about this: Make them help some other characters on an adventure. It worked for Mad Max (clearly) and, incidentally, almost every episode of a little show called f*****g Star Trek.