I've been working on this one script for a while now and it's going pretty good BUT I was just kind of mulling over some of it's nagging issues and I suddenly realized "I don't have a flesh and blood antag. The real source of opposition for my protag is a cultural idea!"
NOW, I have actually got two characters who play the role of physical antags in the script, so..... I'm not really concerned about that.
It's being comfortable with an invisible antag.
Thoughts?
On some level what you are talking about is true of every story -- and that is because, in every story, both protagonist and antagonist (whether that antagonist is a person, a natural disaster, an addiction, or a great white shark) actually embodies some thematic idea.
Order against chaos.
Love against family duty.
Family loyalty against Moral Responsibility.
These are themes -- but themes aren't simply things that are tacked onto stories. They are emergent properties of stories.
It is almost as if you can imagine a story as a kind of moral equation, testing a particular thematic idea. If person embodying moral idea X confronted with situation Y makes choices A, B, and C, then the result will be good outcome Z (or tragic outcome Q).
And that outcome -- Z, or Q -- is the statement of the theme of the story.
That doesn't mean that someone comes out and tells us. The event itself tells us.
Michael Corleone is the decent son -- the moral son, of a criminal family. At the beginning, he tells his girlfriend this story about his father -- this terrible story about how he threatens to murder a man in cold blood in order to get him to break a contract.
So he knows that his father -- however loving he may be to *him* -- is an evil man. He's a thief and a murderer. And he says right up front -- that's my father -- it's not me.
And at a certain point in the story, his father earns the consequences of the life that he's led -- he's shot down in the street, and when he's not killed, the killers, clearly, are going to come after him and finish the job.
And that's as it should be. Vito Corleone has lived his life by crime and violence and that's how he should die.
And Michael, at that point, has a choice to make. Crooked drug dealer, crooked cop, father that he loves. And he chooses to save the father that he loves.
But the father that he loves, in fact, is no better than the crooked cop and the crooked drug dealer. They are all of a kind. For them, it's business.
Michael says when he's trying to convince them to let him kill the two men -- "It's business" -- but it's not, for him. He's acting to save his father.
And for him, it's the key turning point. He's bloodied his hands, and from that point on, he starts down a course that turns him into exactly the person that he never intended to be.
And the final scene, when he has murdered all of these men, including his own brother-in-law and his wife - the same woman who, at the beginning, he swore -- that's not me -- asks him about it, and finally he says, this one time, I'll tell you about my business.
And he lies to her. And we know -- not because he's killed all these men -- but because he's lied to his wife (because everything, supposedly, he's done for his family -- and now we see that he's cut himself off from his family. In fact he has nothing) -- we know that he's lost his soul.
That final scene embodies the theme. He keeps trying to do the right thing -- and because, in the end, he could not choose the greater good over family (remember the whole business about how he was castigated for going off to war and "fighting for strangers) it ends up destroying him and destroying the very thing he is trying to save.
But if you look at this movie analytically, you can see that all of these various characters -- good, bad, or otherwise, serve very precise roles in terms of unfolding this whole moral, thematic dilemma -- letting us see how it plays out in the dramatic landscape of the story.
That's what you have to look at in terms of your story -- how the various characters are working toward unfolding your larger theme -- what purpose they serve, what ideas they embody.
If you do it right, nobody should have to make speeches -- the action (by which I mean the events of the story and the key decisions of the characters, not necessarily an "action" scene) should embody the theme and its ultimate revelation.
NMS